diff --git a/source/blender/windowmanager/intern/wm_splash_screen.cc b/source/blender/windowmanager/intern/wm_splash_screen.cc
index 2d87eb0ba1b..04e25730b69 100644
--- a/source/blender/windowmanager/intern/wm_splash_screen.cc
+++ b/source/blender/windowmanager/intern/wm_splash_screen.cc
@@ -372,17 +372,22 @@ static uiBlock *wm_block_create_custom_splash(bContext *C, ARegion *region, void
 
 static int wm_about_custom_exec(bContext *C, wmOperator *op)
 {
-  char menutype_str[100] = {0};
+  char *menutype_str = MEM_cnew_array<char>(100, __func__);
+  *menutype_str = '\0';
 
   if (RNA_struct_property_is_set(op->ptr, "menutype")) {
     RNA_string_get(op->ptr, "menutype", menutype_str);
   }
 
-  UI_popup_block_invoke(C, wm_block_create_custom_splash, menutype_str, nullptr);
+  UI_popup_block_invoke(C, wm_block_create_custom_splash, menutype_str, MEM_freeN);
 
   return OPERATOR_FINISHED;
 }
 
+static int wm_about_custom_invoke(bContext *C, wmOperator *op , const wmEvent * /*event*/) {
+  return op->type->exec(C, op);
+}
+
 void WM_OT_splash_custom(wmOperatorType *ot)
 {
   PropertyRNA *prop;
@@ -393,6 +398,7 @@ void WM_OT_splash_custom(wmOperatorType *ot)
   ot->description = "Open a splash window with some custom information";
 
   ot->exec = wm_about_custom_exec;
+  ot->invoke = wm_about_custom_invoke;
   ot->poll = WM_operator_winactive;
 
 }