diff --git a/userspace/libraries/LibC/include/sys/file.h b/userspace/libraries/LibC/include/sys/file.h
index 4875dd3f..a7cea362 100644
--- a/userspace/libraries/LibC/include/sys/file.h
+++ b/userspace/libraries/LibC/include/sys/file.h
@@ -6,9 +6,9 @@
 __BEGIN_DECLS
 
 #define LOCK_UN 0
-#define LOCK_EX 1
-#define LOCK_SH 2
-#define LOCK_NB 4
+#define LOCK_SH 1
+#define LOCK_EX 2
+#define LOCK_NB (1 << 2)
 
 int flock(int fd, int op);