diff --git a/vm/Config.macosx b/vm/Config.macosx
index 5b9de7f5cf..693ee9341d 100644
--- a/vm/Config.macosx
+++ b/vm/Config.macosx
@@ -14,7 +14,7 @@ else
 	LIBS = -lm -framework Cocoa -framework AppKit
 endif
 
-LINKER = $(CPP) $(CFLAGS) -dynamiclib -single_module -std=gnu99 \
+LINKER = $(CPP) $(CFLAGS) -dynamiclib -single_module \
 	-current_version $(VERSION) \
 	-compatibility_version $(VERSION) \
 	-fvisibility=hidden \