diff --git a/arch/generic/bits/fcntl.h b/arch/generic/bits/fcntl.h
index ae233cc0..730a98cf 100644
--- a/arch/generic/bits/fcntl.h
+++ b/arch/generic/bits/fcntl.h
@@ -30,9 +30,15 @@
 #define F_SETSIG 10
 #define F_GETSIG 11
 
+#if __LONG_MAX == 0x7fffffffL
 #define F_GETLK 12
 #define F_SETLK 13
 #define F_SETLKW 14
+#else
+#define F_GETLK 5
+#define F_SETLK 6
+#define F_SETLKW 7
+#endif
 
 #define F_SETOWN_EX 15
 #define F_GETOWN_EX 16