diff --git a/src/libs/extensionsystem/CMakeLists.txt b/src/libs/extensionsystem/CMakeLists.txt
index edc1daa2455..fb836631d93 100644
--- a/src/libs/extensionsystem/CMakeLists.txt
+++ b/src/libs/extensionsystem/CMakeLists.txt
@@ -15,7 +15,6 @@ add_qtc_library(ExtensionSystem
     pluginview.cpp pluginview.h
   EXPLICIT_MOC
     pluginmanager.h
-    pluginmanager_p.h
   SKIP_AUTOMOC pluginmanager.cpp
 )
 
diff --git a/src/plugins/clangformat/CMakeLists.txt b/src/plugins/clangformat/CMakeLists.txt
index ca735eaafca..3a25e5bd040 100644
--- a/src/plugins/clangformat/CMakeLists.txt
+++ b/src/plugins/clangformat/CMakeLists.txt
@@ -37,5 +37,4 @@ extend_qtc_plugin(ClangFormat
     tests/clangformat-test.h
   DEFINES
     TESTDATA_DIR="${CMAKE_CURRENT_SOURCE_DIR}/tests/data"
-  EXPLICIT_MOC tests/clangformat-test.h
 )
diff --git a/src/plugins/cppeditor/CMakeLists.txt b/src/plugins/cppeditor/CMakeLists.txt
index 66e25f08feb..c64817cfb0a 100644
--- a/src/plugins/cppeditor/CMakeLists.txt
+++ b/src/plugins/cppeditor/CMakeLists.txt
@@ -112,7 +112,6 @@ add_qtc_plugin(CppEditor
     wrappablelineedit.cpp wrappablelineedit.h
    EXPLICIT_MOC
      cppquickfixsettingswidget.h
-     cppquickfixprojectsettingswidget.h
 )
 
 extend_qtc_plugin(CppEditor
diff --git a/src/plugins/imageviewer/CMakeLists.txt b/src/plugins/imageviewer/CMakeLists.txt
index dfa80763dd4..a952adad2a3 100644
--- a/src/plugins/imageviewer/CMakeLists.txt
+++ b/src/plugins/imageviewer/CMakeLists.txt
@@ -15,5 +15,4 @@ add_qtc_plugin(ImageViewer
     imageviewerplugin.cpp
     imageviewertr.h
     multiexportdialog.cpp multiexportdialog.h
-  EXPLICIT_MOC imageviewer.h
 )
diff --git a/src/plugins/vcpkg/CMakeLists.txt b/src/plugins/vcpkg/CMakeLists.txt
index ba5f156a4ee..74a22feb16c 100644
--- a/src/plugins/vcpkg/CMakeLists.txt
+++ b/src/plugins/vcpkg/CMakeLists.txt
@@ -13,5 +13,4 @@ extend_qtc_plugin(Vcpkg
   CONDITION WITH_TESTS
   SOURCES
     vcpkg_test.cpp vcpkg_test.h
-  EXPLICIT_MOC vcpkg_test.h
 )