diff --git a/src/Fl_Image.cxx b/src/Fl_Image.cxx
index bfb9a8eec..50922af92 100644
--- a/src/Fl_Image.cxx
+++ b/src/Fl_Image.cxx
@@ -130,8 +130,10 @@ Fl_RGB_Image::~Fl_RGB_Image() {
 
 void Fl_RGB_Image::uncache() {
 #ifdef __APPLE_QUARTZ__
-  if (id)
+  if (id) {
     CGImageRelease((CGImageRef)id);
+    id = 0;
+  }
 #else
   if (id) {
     fl_delete_offscreen((Fl_Offscreen)id);
diff --git a/test/boxtype.cxx b/test/boxtype.cxx
index 7db8433f0..34819f601 100644
--- a/test/boxtype.cxx
+++ b/test/boxtype.cxx
@@ -60,6 +60,7 @@ int main(int argc, char ** argv) {
   Fl::get_system_colors();
   Fl::background(113,113,198);
 #else // this code uses the nice bright blue background to show box vs. frame types
+  Fl::args(argc, argv);
   Fl::get_system_colors();
   window->color(12);// light blue
 #endif