diff --git a/include/asm-sparc64/sockios.h b/include/asm-sparc64/sockios.h
index 6735bab4..c7d9900 100644
--- a/include/asm-sparc64/sockios.h
+++ b/include/asm-sparc64/sockios.h
@@ -7,7 +7,8 @@
 #define FIOGETOWN	0x8903
 #define SIOCGPGRP	0x8904
 #define SIOCATMARK	0x8905
-#define SIOCGSTAMP	0x8906		/* Get stamp */
+#define SIOCGSTAMP	0x8906		/* Get stamp (timeval) */
+#define SIOCGSTAMPNS	0x8907		/* Get stamp (timespec) */
 
 #endif /* !(_ASM_SPARC64_SOCKIOS_H) */