diff --git a/gcc/testsuite/gcc.dg/guality/pr54693.c b/gcc/testsuite/gcc.dg/guality/pr54693.c
index adc2dfd..b852c06 100644
--- a/gcc/testsuite/gcc.dg/guality/pr54693.c
+++ b/gcc/testsuite/gcc.dg/guality/pr54693.c
@@ -21,6 +21,7 @@ main ()
       c = 0x30 + i;
       foo (&arr[i], c); /* { dg-final { gdb-test 22 "i" "c - 48" } } */
     }
+  arr[10] = 0;
 
   __builtin_printf ("arr = %s\n", arr);
   return 0;