diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5c5b396..32b3500 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -357,9 +357,6 @@ IF(CMAKE_COMPILER_IS_GNUCC)
         ADD_DEFINITIONS(-fno-stack-protector)
     ENDIF(AQUARIA_GCC_HAS_STACKPROT)
 
-    # We knowingly apply offsetof to non-POD types.
-    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-invalid-offsetof")
-
     # -O3 breaks on some GCC/MinGW versions, make sure CMake does not set this as default.
     # Exceptions are not used, excluding support for release builds adds less bulk as well.
     set(CMAKE_C_FLAGS_RELEASE "-O2" CACHE STRING "Flags used for release builds" FORCE)
@@ -451,6 +448,14 @@ SET(AQUARIA_SRCS_UNUSED
     ${SRCDIR}/WaterFont.cpp
 )
 
+IF(CMAKE_COMPILER_IS_GNUCC OR CMAKE_COMPILER_IS_GNUCXX)
+SET_SOURCE_FILES_PROPERTIES(
+    # We knowingly apply offsetof to non-POD types.
+    ${SRCDIR}/ScriptInterface.cpp
+    PROPERTIES COMPILE_FLAGS "-Wno-invalid-offsetof"
+)
+ENDIF()
+
 IF(MACOSX)
     IF(NOT AQUARIA_USE_SDL2)
         SET(COCOA_SRCS "${BBGEDIR}/Cocoa.mm")