diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index f0e082588729..9f5489d0859c 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2018-07-19  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	* g++.old-deja/g++.mike/p784.C: Add -fpermissive.
+
 2018-07-18  Kugan Vivekanandarajah  <kuganv@linaro.org>
 
 	PR middle-end/86544
diff --git a/gcc/testsuite/g++.old-deja/g++.mike/p784.C b/gcc/testsuite/g++.old-deja/g++.mike/p784.C
index 04a70c2eee47..44d03f109ab7 100644
--- a/gcc/testsuite/g++.old-deja/g++.mike/p784.C
+++ b/gcc/testsuite/g++.old-deja/g++.mike/p784.C
@@ -1,6 +1,6 @@
 // { dg-do assemble  }
 // { dg-require-effective-target ilp32 } */
-// { dg-options "-w" }
+// { dg-options "-w -fpermissive" }
 // prms-id: 784
 
 //# 1 "GctSymbol.GctSymbol.CHMap.cc"