diff --git a/source/blender/editors/interface/interface_intern.hh b/source/blender/editors/interface/interface_intern.hh
index 60b1eff3ae8..26794e66249 100644
--- a/source/blender/editors/interface/interface_intern.hh
+++ b/source/blender/editors/interface/interface_intern.hh
@@ -197,13 +197,11 @@ struct uiBut {
    * For #uiBut.type:
    * - UI_BTYPE_LABEL:        Use `(a1 == 1.0f)` to use a2 as a blending factor (imaginative!).
    * - UI_BTYPE_SCROLL:       Use as scroll size.
-   * - UI_BTYPE_SEPR_LINE:    1.0 = vertical
    */
   float a1 = 0;
 
   /**
    * For #uiBut.type:
-   * - UI_BTYPE_HSVCIRCLE:    Use to store the luminosity.
    * - UI_BTYPE_LABEL:        If `(a1 == 1.0f)` use a2 as a blending factor.
    */
   float a2 = 0;