diff --git a/CMakeLists.txt b/CMakeLists.txt
index cbaab56..161bbb2 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -30,4 +30,7 @@ target_compile_features(python_rgbcx PUBLIC cxx_std_20 c_std_11)
 target_compile_features(test_rgbcx PUBLIC cxx_std_20 c_std_11)
 
 set_property(TARGET python_rgbcx test_rgbcx PROPERTY INTERPROCEDURAL_OPTIMIZATION True) #enable FLTO if available
-set_property(TARGET python_rgbcx test_rgbcx PROPERTY OSX_ARCHITECTURES_RELEASE x86_64 arm64) #Mach-O fat binary for arm and x86
+
+if (CMAKE_CXX_COMPILER_ID STREQUAL "Clang" AND CMAKE_SYSTEM_NAME STREQUAL "Darwin")
+    set_property(TARGET python_rgbcx test_rgbcx PROPERTY OSX_ARCHITECTURES_RELEASE x86_64 arm64) #Mach-O fat binary for arm and x86
+endif ()