diff --git a/ChangeLog b/ChangeLog
index bac95b2012..0defb11eca 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2009-08-07  Ulrich Drepper  <drepper@redhat.com>
+
+	* sysdeps/x86_64/multiarch/strcspn-c.c (STRCSPN_SSE42): Avoid
+	warning through fake initialization.
+
 2009-08-07  H.J. Lu  <hongjiu.lu@intel.com>
 
 	* sysdeps/i386/i686/multiarch/strlen.S (ENTRY): Add the missing "; \".
diff --git a/sysdeps/x86_64/multiarch/strcspn-c.c b/sysdeps/x86_64/multiarch/strcspn-c.c
index 8286d0372b..daeebe1bf5 100644
--- a/sysdeps/x86_64/multiarch/strcspn-c.c
+++ b/sysdeps/x86_64/multiarch/strcspn-c.c
@@ -86,6 +86,8 @@ STRCSPN_SSE42 (const char *s, const char *a)
 
   const char *aligned;
   __m128i mask;
+  /* Fake initialization.  gcc otherwise will warn.  */
+  asm ("" : "=xm" (mask));
   int offset = (int) ((size_t) a & 15);
   if (offset != 0)
     {