diff --git a/core/org.eclipse.cdt.ui/plugin.xml b/core/org.eclipse.cdt.ui/plugin.xml
index 8a4f64bf812..7f6fc4dc6ee 100644
--- a/core/org.eclipse.cdt.ui/plugin.xml
+++ b/core/org.eclipse.cdt.ui/plugin.xml
@@ -744,6 +744,11 @@
       <objectContribution 
           id="org.eclipse.cdt.ui.cproject.in.explorer.contrib"
           objectClass="org.eclipse.core.resources.IProject">
+         <visibility>
+              <objectState
+                 name="projectNature"
+                 value="org.eclipse.cdt.core.cnature"/>
+         </visibility>
          <action
              class="org.eclipse.cdt.internal.ui.actions.UpdateIndexWithModifiedFilesAction"
              id="org.eclipse.cdt.ui.syncIndexWithDiskAction"