diff --git a/ApplicationCode/ModelVisualization/RivWellPathSourceInfo.h b/ApplicationCode/ModelVisualization/RivWellPathSourceInfo.h
index aa8a223b99..dc8bb1c383 100644
--- a/ApplicationCode/ModelVisualization/RivWellPathSourceInfo.h
+++ b/ApplicationCode/ModelVisualization/RivWellPathSourceInfo.h
@@ -19,6 +19,7 @@
 
 #pragma once
 
+#include "cvfBase.h"
 #include "cvfObject.h"
 
 //==================================================================================================