diff --git a/Headers/gnustep/gui/NSColorWell.h b/Headers/gnustep/gui/NSColorWell.h
index 88c4a8c55..0ba13c7f5 100644
--- a/Headers/gnustep/gui/NSColorWell.h
+++ b/Headers/gnustep/gui/NSColorWell.h
@@ -37,9 +37,10 @@
 
 {
   // Attributes
-  NSColor *the_color;
-  BOOL is_active;
-  BOOL is_bordered;
+  NSColor *_the_color;
+  BOOL _is_active;
+  BOOL _is_bordered;
+  NSRect _wellRect;
 }
 
 //