diff --git a/ApplicationCode/ProjectDataModel/RimCalcScript.cpp b/ApplicationCode/ProjectDataModel/RimCalcScript.cpp
index b16fe12977..7794031863 100644
--- a/ApplicationCode/ProjectDataModel/RimCalcScript.cpp
+++ b/ApplicationCode/ProjectDataModel/RimCalcScript.cpp
@@ -35,6 +35,7 @@ RimCalcScript::RimCalcScript()
     CAF_PDM_InitField(&absolutePath, "AbsolutePath", QString(), "Location", "", "" ,"");
     CAF_PDM_InitField(&content, "Content", QString(), "Directory", "", "" ,"");
     content.setUiHidden(true);
+    content.setIOWritable(false);
 
     absolutePath.setUiEditorTypeName(caf::PdmUiFilePathEditor::uiEditorTypeName());
 }