diff --git a/gcc/testsuite/gcc.dg/tree-ssa/reassoc-20.c b/gcc/testsuite/gcc.dg/tree-ssa/reassoc-20.c
index 3d2ea6b6c75..a7d57f12600 100644
--- a/gcc/testsuite/gcc.dg/tree-ssa/reassoc-20.c
+++ b/gcc/testsuite/gcc.dg/tree-ssa/reassoc-20.c
@@ -15,5 +15,5 @@ int main(void)
   printf ("%d %d\n", e, f);
 }
 
-/* { dg-final { scan-tree-dump-times "\[ab\].._. \\\+ \[ab\].._." 1 "optimized" } } */
+/* { dg-final { scan-tree-dump-times "\[ab\].\?.._. \\\+ \[ab\].\?.._." 1 "optimized" } } */
 /* { dg-final { scan-tree-dump-times " \\\+ " 2 "optimized" } } */