diff --git a/include/uapi/linux/sockios.h b/include/uapi/linux/sockios.h
index 7d1bccbb..35d7a60f 100644
--- a/include/uapi/linux/sockios.h
+++ b/include/uapi/linux/sockios.h
@@ -39,8 +39,12 @@
 
 #if __BITS_PER_LONG == 64 || (defined(__x86_64__) && defined(__ILP32__))
 /* on 64-bit and x32, avoid the ?: operator */
+#ifndef SIOCGSTAMP
 #define SIOCGSTAMP	SIOCGSTAMP_OLD
+#endif
+#ifndef SIOCGSTAMPNS
 #define SIOCGSTAMPNS	SIOCGSTAMPNS_OLD
+#endif
 #else
 #define SIOCGSTAMP	((sizeof(struct timeval))  == 8 ? \
 			 SIOCGSTAMP_OLD   : SIOCGSTAMP_NEW)