diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 242a33b0283..a1919099fac 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2011-05-19  Richard Guenther  <rguenther@suse.de>
+
+	PR testsuite/49063
+	* gcc.dg/builtin-object-size-11.c: Use -std=gnu89.
+
 2011-05-19  Richard Guenther  <rguenther@suse.de>
 
 	PR middle-end/48985
diff --git a/gcc/testsuite/gcc.dg/builtin-object-size-11.c b/gcc/testsuite/gcc.dg/builtin-object-size-11.c
index 427b94d4335..a98bc356c47 100644
--- a/gcc/testsuite/gcc.dg/builtin-object-size-11.c
+++ b/gcc/testsuite/gcc.dg/builtin-object-size-11.c
@@ -1,5 +1,6 @@
 /* PR48985 */
 /* { dg-do run } */
+/* { dg-options "-std=gnu89" } */
 
 extern void abort (void);