--- a/resource.h
+++ b/resource.h
@@ -320,7 +320,6 @@
 #define IDC_EDIT_SHELX                  1288
 #define IDC_EDIT_JANA                   1289
 #define IDC_EDIT_ATOMS                  1290
-#define IDC_CUSTOM1                     1291
 #define ID_VIEW_LEVELCONTROL            32771
 #define ID_FILE_SAVE_BMP                32772
 #define ID_FILE_OPEN2                   32773