diff --git a/CMakeLists.txt b/CMakeLists.txt
index 836e9d9d..9ef64ce3 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -21,6 +21,7 @@ if(OPT_ENABLE_QT6)
         set(DFM_BUILD_WITH_QT6 TRUE)
         set(QT_VERSION_MAJOR 6)
         set(DFM_VERSION_MAJOR 6)
+        set(PROJECT_VERSION_MAJOR 1)
     endif()
 endif()
 
@@ -28,6 +29,7 @@ if(NOT DFM_BUILD_WITH_QT6)
    message(WARNING "Qt6 not found, Use Qt5.")
    set(QT_VERSION_MAJOR 5)
    set(DFM_VERSION_MAJOR "")
+   set(PROJECT_VERSION_MAJOR 0)
 endif()
 
 # default
diff --git a/src/dfm-burn/dfm-burn-lib/dfm-burn.cmake b/src/dfm-burn/dfm-burn-lib/dfm-burn.cmake
index 80b28d68..58a69d9b 100644
--- a/src/dfm-burn/dfm-burn-lib/dfm-burn.cmake
+++ b/src/dfm-burn/dfm-burn-lib/dfm-burn.cmake
@@ -26,10 +26,6 @@ if (NOT VERSION)
     set(VERSION "1.0.0")
 endif()
 
-if (NOT PROJECT_VERSION_MAJOR)
-    set(PROJECT_VERSION_MAJOR 1)
-endif()
-
 set_target_properties(
     ${BIN_NAME} PROPERTIES
     VERSION ${VERSION}
diff --git a/src/dfm-io/dfm-io/dfm-io.cmake b/src/dfm-io/dfm-io/dfm-io.cmake
index 367238b4..9163b8f7 100644
--- a/src/dfm-io/dfm-io/dfm-io.cmake
+++ b/src/dfm-io/dfm-io/dfm-io.cmake
@@ -30,10 +30,6 @@ if (NOT VERSION)
     set(VERSION "1.0.0")
 endif()
 
-if (NOT PROJECT_VERSION_MAJOR)
-    set(PROJECT_VERSION_MAJOR 1)
-endif()
-
 set_target_properties(
     ${BIN_NAME} PROPERTIES
     VERSION ${VERSION}
diff --git a/src/dfm-mount/dfm-mount.cmake b/src/dfm-mount/dfm-mount.cmake
index 040bf973..e7b5dfaf 100644
--- a/src/dfm-mount/dfm-mount.cmake
+++ b/src/dfm-mount/dfm-mount.cmake
@@ -21,10 +21,6 @@ if (NOT VERSION)
     set(VERSION "1.0.0")
 endif()
 
-if (NOT PROJECT_VERSION_MAJOR)
-    set(PROJECT_VERSION_MAJOR 1)
-endif()
-
 set_target_properties(
     ${BIN_NAME} PROPERTIES
     VERSION ${VERSION}