@@ -13,11 +13,15 @@
 
 #include <stdio.h>
 #include <stdlib.h>
 #include <assert.h>
 
-#import <objc/objc.h>
+#ifdef OF_OBJFW_RUNTIME
+# import <objfw-rt.h>
+#else
+# import <objc/objc.h>
+#endif
 
 #import "threading.h"
 
 /// \cond internal
 struct locks_s {