diff --git a/src/App/Application.cpp b/src/App/Application.cpp
index a93fa81da..f8c5f079a 100644
--- a/src/App/Application.cpp
+++ b/src/App/Application.cpp
@@ -1003,6 +1003,7 @@ void Application::initTypes(void)
     App ::PropertyFloat             ::init();
     App ::PropertyFloatList         ::init();
     App ::PropertyFloatConstraint   ::init();
+    App ::PropertyQuantity          ::init();
     App ::PropertyAngle             ::init();
     App ::PropertyDistance          ::init();
     App ::PropertyLength            ::init();