diff --git a/ApplicationLibCode/GeoMech/GeoMechDataModel/RigGeoMechCaseData.h b/ApplicationLibCode/GeoMech/GeoMechDataModel/RigGeoMechCaseData.h
index b916b74f31..a6c243cbdc 100644
--- a/ApplicationLibCode/GeoMech/GeoMechDataModel/RigGeoMechCaseData.h
+++ b/ApplicationLibCode/GeoMech/GeoMechDataModel/RigGeoMechCaseData.h
@@ -23,6 +23,7 @@
 #include "RigFemResultPosEnum.h"
 
 #include "cvfObject.h"
+#include "cvfVector3.h"
 
 #include <string>
 #include <vector>