diff --git a/ApplicationLibCode/Commands/PolygonCommands/RicNewPolygonFeature.cpp b/ApplicationLibCode/Commands/PolygonCommands/RicNewPolygonFeature.cpp
index e7723d1f8f..c89518686e 100644
--- a/ApplicationLibCode/Commands/PolygonCommands/RicNewPolygonFeature.cpp
+++ b/ApplicationLibCode/Commands/PolygonCommands/RicNewPolygonFeature.cpp
@@ -18,6 +18,8 @@
 
 #include "RicNewPolygonFeature.h"
 
+#include "RiaApplication.h"
+
 #include "Polygons/RimPolygon.h"
 #include "Polygons/RimPolygonCollection.h"
 #include "Polygons/RimPolygonTools.h"