--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -376,7 +376,7 @@
         SET(HAS_FLUIDSYNTH 1)
         LINK_DIRECTORIES(${FLUIDSYNTH_LIBRARY_DIRS})
         SET_SOURCE_FILES_PROPERTIES(src/codec_fluidsynth.cpp PROPERTIES
-                                    COMPILE_FLAGS "${FLUIDSYNTH_CFLAGS}")
+                                    COMPILE_OPTIONS "${FLUIDSYNTH_CFLAGS}")
     ENDIF(NOT FLUIDSYNTH_FOUND)
     IF(HAS_FLUIDSYNTH)
         SET(ALURE_OBJS ${ALURE_OBJS} src/codec_fluidsynth.cpp)