diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 4ced0062f..c352b16bd 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -991,10 +991,11 @@ if( NOT WIN32 )
 		COMMAND chmod +x ${CMAKE_CURRENT_BINARY_DIR}/link-make
 		COMMAND /bin/sh -c ${CMAKE_CURRENT_BINARY_DIR}/link-make )
 endif( NOT WIN32 )
-if( "${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU" OR "${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang" )
+if( "${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU" )
 	# GCC misoptimizes this file
 	set_source_files_properties( oplsynth/fmopl.cpp PROPERTIES COMPILE_FLAGS "-fno-tree-dominator-opts -fno-tree-fre" )
-
+endif( "${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU" )
+if( "${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU" OR "${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang" )
 	# Need to enable intrinsics for this file.
 	if( SSE_MATTERS )
 		set_source_files_properties( x86.cpp PROPERTIES COMPILE_FLAGS "-msse2 -mmmx" )