diff --git a/src/main/groovy/org/eolang/lints/HomeNames.groovy b/src/main/groovy/org/eolang/lints/HomeNames.groovy
index c3052deca..f42c9aef3 100644
--- a/src/main/groovy/org/eolang/lints/HomeNames.groovy
+++ b/src/main/groovy/org/eolang/lints/HomeNames.groovy
@@ -118,8 +118,6 @@ final class HomeNames {
         && file.contains(
         Path.of(this.location)
           .resolve("objects")
-          .resolve("org")
-          .resolve("eolang")
           .toString().replace("\\", "/")
       )
     }
diff --git a/src/main/java/org/eolang/lints/DefectMissing.java b/src/main/java/org/eolang/lints/DefectMissing.java
index c6c2ed17a..a3d681e35 100644
--- a/src/main/java/org/eolang/lints/DefectMissing.java
+++ b/src/main/java/org/eolang/lints/DefectMissing.java
@@ -44,7 +44,11 @@ public Boolean apply(final String unlint) {
         final String name = split[0];
         final List<Integer> lines = this.defects.get(name);
         if (unlint.matches(String.format("%s:\\d+-\\d+", name))) {
-            missing = !lines.stream().allMatch(new UnlintInRange(unlint));
+            if (lines == null) {
+                missing = !this.excluded.contains(name);
+            } else {
+                missing = !lines.stream().allMatch(new UnlintInRange(unlint));
+            }
         } else {
             final Set<String> names;
             if (this.defects != null) {
@@ -53,7 +57,9 @@ public Boolean apply(final String unlint) {
                 names = new SetOf<>();
             }
             if (split.length > 1) {
-                missing = (!names.contains(name) || !lines.contains(Integer.parseInt(split[1])))
+                missing = (!names.contains(name)
+                    || lines == null
+                    || !lines.contains(Integer.parseInt(split[1])))
                     && !this.excluded.contains(name);
             } else {
                 missing = !names.contains(name) && !this.excluded.contains(name);
diff --git a/src/test/groovy/org/eolang/lints/HomeNamesTest.groovy b/src/test/groovy/org/eolang/lints/HomeNamesTest.groovy
index f3ca22f96..b12c26f04 100644
--- a/src/test/groovy/org/eolang/lints/HomeNamesTest.groovy
+++ b/src/test/groovy/org/eolang/lints/HomeNamesTest.groovy
@@ -48,7 +48,7 @@ final class HomeNamesTest {
       Matchers.everyItem(
         Matchers.hasToString(
           Matchers.matchesRegex(
-            "org\\.eolang(?:\\.[a-zA-Z_][a-zA-Z0-9_-]*)+\\.eo"
+            "(?:[a-zA-Z_][a-zA-Z0-9_-]*\\.)*[a-zA-Z_][a-zA-Z0-9_-]*\\.eo"
           )
         )
       )
diff --git a/src/test/java/org/eolang/lints/DefectMissingTest.java b/src/test/java/org/eolang/lints/DefectMissingTest.java
index 25f89784f..d531ec65a 100644
--- a/src/test/java/org/eolang/lints/DefectMissingTest.java
+++ b/src/test/java/org/eolang/lints/DefectMissingTest.java
@@ -80,4 +80,23 @@ void returnsTrueIfSomeLineIsOutOfRange() {
             Matchers.equalTo(true)
         );
     }
+
+    @Test
+    void returnsTrueWhenRangeReferencesAbsentLint() {
+        MatcherAssert.assertThat(
+            "Defect should be missing when range pattern references an absent lint",
+            new DefectMissing(new MapOf<>(), new ListOf<>()).apply("ascii-only:1-5"),
+            Matchers.equalTo(true)
+        );
+    }
+
+    @Test
+    void returnsFalseWhenRangeReferencesExcludedAbsentLint() {
+        MatcherAssert.assertThat(
+            "Defect should not be missing when the absent lint is excluded",
+            new DefectMissing(new MapOf<>(), new ListOf<>("ascii-only"))
+                .apply("ascii-only:1-5"),
+            Matchers.equalTo(false)
+        );
+    }
 }
diff --git a/src/test/java/org/eolang/lints/LtReservedNameTest.java b/src/test/java/org/eolang/lints/LtReservedNameTest.java
index da37c9ba4..ae72daca5 100644
--- a/src/test/java/org/eolang/lints/LtReservedNameTest.java
+++ b/src/test/java/org/eolang/lints/LtReservedNameTest.java
@@ -26,7 +26,7 @@ final class LtReservedNameTest {
     void catchesReservedName() throws IOException {
         MatcherAssert.assertThat(
             "It is expected to catch only one defect here",
-            new LtReservedName(new MapOf<>("true", "org.eolang.true.eo"))
+            new LtReservedName(new MapOf<>("true", "true.eo"))
                 .defects(
                     new EoSyntax(
                         String.join(
@@ -45,7 +45,7 @@ void catchesReservedName() throws IOException {
     void allowsNonReservedName() throws IOException {
         MatcherAssert.assertThat(
             "Defects are not empty, but they should",
-            new LtReservedName(new MapOf<>("true", "org.eolang.true.eo"))
+            new LtReservedName(new MapOf<>("true", "true.eo"))
                 .defects(
                     new EoSyntax(
                         String.join(
@@ -63,7 +63,7 @@ void allowsNonReservedName() throws IOException {
     void allowsUniqueNameInTopSourceObject() throws IOException {
         MatcherAssert.assertThat(
             "Defects are not empty, but they should",
-            new LtReservedName(new MapOf<>("f", "org.eolang.f.eo"))
+            new LtReservedName(new MapOf<>("f", "f.eo"))
                 .defects(
                     new EoSyntax(
                         String.join(
@@ -80,7 +80,7 @@ void allowsUniqueNameInTopSourceObject() throws IOException {
     @Test
     void catchesReservedNameWithPackage() throws IOException {
         final Collection<Defect> found = new LtReservedName(
-            new MapOf<>("stdout", "org.eolang.stdout.eo")
+            new MapOf<>("stdout", "stdout.eo")
         ).defects(
             new EoSyntax(
                 String.join(
@@ -109,8 +109,8 @@ void reportsMultipleNames() throws IOException {
             "Defects size does not match with expected",
             new LtReservedName(
                 new MapOf<String, String>(
-                    new MapEntry<>("ja", "org.eolang.ja.eo"),
-                    new MapEntry<>("spb", "org.eolang.spb.eo")
+                    new MapEntry<>("ja", "ja.eo"),
+                    new MapEntry<>("spb", "spb.eo")
                 )
             ).defects(
                 new EoSyntax(
@@ -131,7 +131,7 @@ void reportsReservedNameInTopObject() throws IOException {
         MatcherAssert.assertThat(
             "Defects size does not match with expected",
             new LtReservedName(
-                new MapOf<>("foo", "org.eolang.foo.eo")
+                new MapOf<>("foo", "foo.eo")
             ).defects(
                 new EoSyntax(
                     String.join(
@@ -152,7 +152,7 @@ void reportsCorrectMessageForReservedNameInTopObject() throws IOException {
             "The name of high-level object 'foo' should be reported",
             new ListOf<>(
                 new LtReservedName(
-                    new MapOf<>("foo", "org.eolang.foo.eo")
+                    new MapOf<>("foo", "foo.eo")
                 ).defects(
                     new EoSyntax(
                         String.join(
@@ -165,7 +165,7 @@ void reportsCorrectMessageForReservedNameInTopObject() throws IOException {
                 )
             ).get(0).text(),
             Matchers.equalTo(
-                "Object name \"foo\" is already reserved by object in the \"org.eolang.foo.eo\""
+                "Object name \"foo\" is already reserved by object in the \"foo.eo\""
             )
         );
     }
@@ -207,7 +207,7 @@ void scansReservedFromHomeWithCorrectMessage() throws Exception {
                 )
             ).get(0).text(),
             Matchers.equalTo(
-                "Object name \"stdout\" is already reserved by object in the \"org.eolang.io.stdout.eo\""
+                "Object name \"stdout\" is already reserved by object in the \"io.stdout.eo\""
             )
         );
     }
diff --git a/src/test/java/org/eolang/lints/LtUnlintNonExistingDefectTest.java b/src/test/java/org/eolang/lints/LtUnlintNonExistingDefectTest.java
index eca2a1deb..ef8853f3f 100644
--- a/src/test/java/org/eolang/lints/LtUnlintNonExistingDefectTest.java
+++ b/src/test/java/org/eolang/lints/LtUnlintNonExistingDefectTest.java
@@ -222,4 +222,26 @@ void catchesUnlintWithOutOfRangeLines() throws IOException {
             Matchers.iterableWithSize(1)
         );
     }
+
+    @Test
+    void catchesUnlintWithRangeForAbsentLint() throws IOException {
+        MatcherAssert.assertThat(
+            "Non-existing unlint with range should be reported, not crash with NPE",
+            new LtUnlintNonExistingDefect(
+                new ListOf<>(new LtAsciiOnly()),
+                new ListOf<>()
+            ).defects(
+                new EoSyntax(
+                    String.join(
+                        "\n",
+                        "+unlint ascii-only:1-5",
+                        "[] > main",
+                        "  QQ.io.stdout > @",
+                        "    \"Hello\""
+                    )
+                ).parsed()
+            ),
+            Matchers.iterableWithSize(1)
+        );
+    }
 }
diff --git a/src/test/java/org/eolang/lints/ReservedNamesTest.java b/src/test/java/org/eolang/lints/ReservedNamesTest.java
index b1bfa91bd..d63edd713 100644
--- a/src/test/java/org/eolang/lints/ReservedNamesTest.java
+++ b/src/test/java/org/eolang/lints/ReservedNamesTest.java
@@ -35,7 +35,7 @@ void readsReservedInCorrectFormat() {
             Matchers.everyItem(
                 Matchers.hasToString(
                     Matchers.matchesRegex(
-                        "org\\.eolang(?:\\.[a-zA-Z_][a-zA-Z0-9_-]*)+\\.eo"
+                        "(?:[a-zA-Z_][a-zA-Z0-9_-]*\\.)*[a-zA-Z_][a-zA-Z0-9_-]*\\.eo"
                     )
                 )
             )