diff --git a/libmudflap/ChangeLog b/libmudflap/ChangeLog
index 1e74ddec48e..23f4bad31e2 100644
--- a/libmudflap/ChangeLog
+++ b/libmudflap/ChangeLog
@@ -1,3 +1,8 @@
+2010-10-31  Jason Merrill  <jason@redhat.com>
+
+	PR testsuite/20003
+	* testsuite/libmudflap.cth/pass40-frag.c: Increase timeout to 30.
+
 2010-08-20  Uros Bizjak  <ubizjak@gmail.com>
 
 	* testsuite/libmudflap.c++/pass41-frag.cxx (dg-prune-output):
diff --git a/libmudflap/testsuite/libmudflap.cth/pass40-frag.c b/libmudflap/testsuite/libmudflap.cth/pass40-frag.c
index 4bba4d350ae..007cb1607de 100644
--- a/libmudflap/testsuite/libmudflap.cth/pass40-frag.c
+++ b/libmudflap/testsuite/libmudflap.cth/pass40-frag.c
@@ -45,7 +45,7 @@ int main ()
         return (0);
 }
 
-/* { dg-timeout 20 } */
+/* { dg-timeout 30 } */
 /* { dg-output "100 200 300 400 500 600 700 800 900 1000 \n" } */
 /* { dg-output "1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 \n" } */
 /* { dg-output "2100 2200 2300 2400 2500 2600 2700 2800 2900 3000 \n" } */