diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 4c3c92744c1..e3a52b5db95 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,9 @@
+2018-06-28  David Pagan  <dave.pagan@oracle.com>
+
+	PR c/55976
+	* gcc.dg/noncompile/pr55976-1.c: Add dg-prune-output for extraneous
+	message causing unexpected test FAIL.
+
 2018-06-28  Martin Liska  <mliska@suse.cz>
 
 	* gcc.dg/tree-ssa/switch-1.c: New test.
diff --git a/gcc/testsuite/gcc.dg/noncompile/pr55976-1.c b/gcc/testsuite/gcc.dg/noncompile/pr55976-1.c
index b3e63283c90..d078990bd88 100644
--- a/gcc/testsuite/gcc.dg/noncompile/pr55976-1.c
+++ b/gcc/testsuite/gcc.dg/noncompile/pr55976-1.c
@@ -1,6 +1,7 @@
 /* PR c/55976 */
 /* { dg-do compile } */
 /* { dg-options "-Werror=return-type" } */
+/* { dg-prune-output "some warnings being treated as errors" } */
 
 /* Verify warnings for return type become errors.  */