diff --git a/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/editor/CContentOutlinePage.java b/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/editor/CContentOutlinePage.java
index 9e6f86d644f..287d134308a 100644
--- a/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/editor/CContentOutlinePage.java
+++ b/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/editor/CContentOutlinePage.java
@@ -71,7 +71,7 @@ public class CContentOutlinePage extends Page implements IContentOutlinePage, IS
 	private TogglePresentationAction fTogglePresentation;
 	private String fContextMenuId;
 	
-	OpenIncludeAction fOpenIncludeAction;
+	protected OpenIncludeAction fOpenIncludeAction;
 	private IncludeGroupingAction fIncludeGroupingAction;
 	
 	private MemberFilterActionGroup fMemberFilterActionGroup;