diff --git a/UI/addinui.cpp b/UI/addinui.cpp
index 1177205f0..0d7304cc0 100644
--- a/UI/addinui.cpp
+++ b/UI/addinui.cpp
@@ -172,7 +172,8 @@ namespace ui::addinui
 				}
 			}
 
-			delete[] lpDialogResult;
+			delete[] lpDialogResult->lpDialogControlResults;
+			delete lpDialogResult;
 		}
 	}