diff --git a/ApplicationCode/ProjectDataModel/RimCalculation.cpp b/ApplicationCode/ProjectDataModel/RimCalculation.cpp
index e21e2df5ae..45b538d188 100644
--- a/ApplicationCode/ProjectDataModel/RimCalculation.cpp
+++ b/ApplicationCode/ProjectDataModel/RimCalculation.cpp
@@ -26,6 +26,7 @@
 #include "cafPdmUiTextEditor.h"
 
 #include <numeric>
+#include <algorithm>
 
 
 CAF_PDM_SOURCE_INIT(RimCalculation, "RimCalculation");