diff --git a/CMakeLists.txt b/CMakeLists.txt
index bcb12f95f3..d94aba35f9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -55,7 +55,11 @@ set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
 # This is a workaround/compromise for a Kwin specific policy of not applying the relevant override fix.
 # See thread in D18167.
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-inconsistent-missing-override -Wno-suggest-override")
+if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-inconsistent-missing-override")
+else()
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-suggest-override")
+endif()
 
 find_package(Qt5Multimedia QUIET)
 set_package_properties(Qt5Multimedia PROPERTIES