diff --git a/Testing/nsarchiver.m b/Testing/nsarchiver.m
index bb7c97314..931588cb9 100644
--- a/Testing/nsarchiver.m
+++ b/Testing/nsarchiver.m
@@ -49,7 +49,7 @@ int main()
   printf("\nReading:\n");
   {
     id o, e = [set objectEnumerator];
-    while (o = [e nextObject])
+    while ((o = [e nextObject]))
       printf("%@\n", o);    
   }