diff --git a/plugins/src/main/java/io/github/rawvoid/jaxb/plugin/NormalizeClassPlugin.java b/plugins/src/main/java/io/github/rawvoid/jaxb/plugin/NormalizeClassPlugin.java
index ad2936d..cf95123 100644
--- a/plugins/src/main/java/io/github/rawvoid/jaxb/plugin/NormalizeClassPlugin.java
+++ b/plugins/src/main/java/io/github/rawvoid/jaxb/plugin/NormalizeClassPlugin.java
@@ -73,6 +73,12 @@ private void removeEmptyDerivedClasses(Outline outline) {
             if (!isEmptyClass(implClass)) {
                 return;
             }
+            var className = implClass.name();
+            var superClassName = definedSuperClass.name();
+            if (!(className.startsWith(superClassName) || className.endsWith(superClassName)
+                || superClassName.startsWith(className) || superClassName.endsWith(className))) {
+                return;
+            }
 
             JaxbClassRefactorUtil.removeFromParentContainer(implClass);
             JaxbClassRefactorUtil.removeFromObjectFactory(implClass);
diff --git a/plugins/src/test/java/io/github/rawvoid/jaxb/plugin/NormalizeClassPluginTest.java b/plugins/src/test/java/io/github/rawvoid/jaxb/plugin/NormalizeClassPluginTest.java
index 69a4a64..5e7023c 100644
--- a/plugins/src/test/java/io/github/rawvoid/jaxb/plugin/NormalizeClassPluginTest.java
+++ b/plugins/src/test/java/io/github/rawvoid/jaxb/plugin/NormalizeClassPluginTest.java
@@ -44,18 +44,24 @@ void testNormalizeDuplicateClasses() throws Exception {
 
         assertThat(classBySimpleName).containsKeys("NormalizeRoot", "Group", "AnotherGroup", "Entry");
         assertThat(classBySimpleName).containsKey("BaseType");
-        assertThat(classBySimpleName).doesNotContainKey("EmptyChild");
+        assertThat(classBySimpleName).containsKey("BaseNode");
+        assertThat(classBySimpleName).containsKey("EmptyChild");
+        assertThat(classBySimpleName).doesNotContainKey("Node");
         assertThat(classBySimpleName.get("Entry")).hasSize(1);
 
         var groupClass = classBySimpleName.get("Group").getFirst();
         var anotherGroupClass = classBySimpleName.get("AnotherGroup").getFirst();
         var entryClass = classBySimpleName.get("Entry").getFirst();
         var baseTypeClass = classBySimpleName.get("BaseType").getFirst();
+        var baseNodeClass = classBySimpleName.get("BaseNode").getFirst();
+        var emptyChildClass = classBySimpleName.get("EmptyChild").getFirst();
         var normalizeRootClass = classBySimpleName.get("NormalizeRoot").getFirst();
 
         assertThat(groupClass.getDeclaredField("entry").getType()).isEqualTo(entryClass);
         assertThat(anotherGroupClass.getDeclaredField("entry").getType()).isEqualTo(entryClass);
-        assertThat(normalizeRootClass.getDeclaredField("emptyChild").getType()).isEqualTo(baseTypeClass);
-        assertThat(Modifier.isAbstract(baseTypeClass.getModifiers())).isFalse();
+        assertThat(normalizeRootClass.getDeclaredField("emptyChild").getType()).isEqualTo(emptyChildClass);
+        assertThat(normalizeRootClass.getDeclaredField("node").getType()).isEqualTo(baseNodeClass);
+        assertThat(Modifier.isAbstract(baseTypeClass.getModifiers())).isTrue();
+        assertThat(Modifier.isAbstract(baseNodeClass.getModifiers())).isFalse();
     }
 }
diff --git a/plugins/src/test/resources/schema/normalize-class.xsd b/plugins/src/test/resources/schema/normalize-class.xsd
index dd6d41f..3245348 100644
--- a/plugins/src/test/resources/schema/normalize-class.xsd
+++ b/plugins/src/test/resources/schema/normalize-class.xsd
@@ -49,6 +49,7 @@
                 </xs:complexType>
             </xs:element>
             <xs:element name="emptyChild" type="tns:EmptyChild"/>
+            <xs:element name="node" type="tns:Node"/>
         </xs:sequence>
     </xs:complexType>
 
@@ -60,5 +61,13 @@
         </xs:complexContent>
     </xs:complexType>
 
+    <xs:complexType name="BaseNode" abstract="true"/>
+
+    <xs:complexType name="Node">
+        <xs:complexContent>
+            <xs:extension base="tns:BaseNode"/>
+        </xs:complexContent>
+    </xs:complexType>
+
     <xs:element name="normalizeRoot" type="tns:NormalizeRoot"/>
 </xs:schema>