diff --git a/src/openrct2/ui/DummyUiContext.cpp b/src/openrct2/ui/DummyUiContext.cpp
index ca89441286..952b91b268 100644
--- a/src/openrct2/ui/DummyUiContext.cpp
+++ b/src/openrct2/ui/DummyUiContext.cpp
@@ -83,6 +83,8 @@ namespace OpenRCT2 { namespace Ui
 
         // Clipboard
         bool SetClipboardText(const utf8* target) override { return false; }
+
+        ~DummyUiContext() { delete _windowManager; }
     };
 
     IUiContext * CreateDummyUiContext()