diff --git a/source/blender/makesdna/DNA_screen_types.h b/source/blender/makesdna/DNA_screen_types.h
index aa59b886d5a..a44fc9782ff 100644
--- a/source/blender/makesdna/DNA_screen_types.h
+++ b/source/blender/makesdna/DNA_screen_types.h
@@ -201,7 +201,6 @@ typedef enum uiPanelDataExpansion {
   UI_SUBPANEL_DATA_EXPAND_13 = (1 << 13),
   UI_SUBPANEL_DATA_EXPAND_14 = (1 << 14),
   UI_SUBPANEL_DATA_EXPAND_15 = (1 << 15),
-  UI_SUBPANEL_DATA_EXPAND_16 = (1 << 16),
 } uiPanelDataExpansion;
 
 /**