diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index d13adc36e51..8645df9e4b2 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2010-12-16  H.J. Lu  <hongjiu.lu@intel.com>
+
+	PR lto/46976
+	* gcc.dg/lto/pr46940_1.c (main): Return 0.
+
 2010-12-16  Chung-Lin Tang  <cltang@codesourcery.com>
 
 	PR target/46883
diff --git a/gcc/testsuite/gcc.dg/lto/pr46940_1.c b/gcc/testsuite/gcc.dg/lto/pr46940_1.c
index 0a8dab54b5b..924a09b7cb5 100644
--- a/gcc/testsuite/gcc.dg/lto/pr46940_1.c
+++ b/gcc/testsuite/gcc.dg/lto/pr46940_1.c
@@ -1,5 +1,7 @@
 extern void _moz_foo (void);
+int
 main()
 {
   _moz_foo ();
+  return 0;
 }