diff --git a/Modules/CheckForPthreads.c b/Modules/CheckForPthreads.c
index 7250fbff6..2732957e1 100644
--- a/Modules/CheckForPthreads.c
+++ b/Modules/CheckForPthreads.c
@@ -31,7 +31,7 @@ void* runner(void* args)
   int cc;
   for ( cc = 0; cc < 10; cc ++ )
     {
-    printf("%d CC: %d\n", (int)args, cc);
+    printf("%p CC: %d\n", args, cc);
     }
   res ++;
   return 0;