diff --git a/include/asm-mips/errno.h b/include/asm-mips/errno.h
index 3c0d840e45773e867980116affb51aae255273f5..9d3e6e7cdb9212db444705b88b8e2faa9c6e4f1a 100644
--- a/include/asm-mips/errno.h
+++ b/include/asm-mips/errno.h
@@ -119,6 +119,10 @@
 #define	EOWNERDEAD	165	/* Owner died */
 #define	ENOTRECOVERABLE	166	/* State not recoverable */
 
+/* for robust mutexes */
+#define	EOWNERDEAD	165	/* Owner died */
+#define	ENOTRECOVERABLE	166	/* State not recoverable */
+
 #define EDQUOT		1133	/* Quota exceeded */
 
 #ifdef __KERNEL__