diff --git a/opm/parser/eclipse/EclipseState/Grid/GridProperty.hpp b/opm/parser/eclipse/EclipseState/Grid/GridProperty.hpp
index 6025754fa..cabdc1420 100644
--- a/opm/parser/eclipse/EclipseState/Grid/GridProperty.hpp
+++ b/opm/parser/eclipse/EclipseState/Grid/GridProperty.hpp
@@ -21,6 +21,7 @@
 
 #include <functional>
 #include <string>
+#include <utility>
 #include <vector>
 
 /*
@@ -85,6 +86,11 @@ class GridPropertySupportedKeywordInfo {
         const post& postProcessor() const;
         bool isDefaultInitializable() const;
 
+        void setPostProcessor(post processor)
+        {
+            this->m_postProcessor = std::move(processor);
+        }
+
     private:
 
         std::string m_keywordName;