diff --git a/debug/org.eclipse.cdt.debug.core/src/org/eclipse/cdt/debug/internal/core/model/CVariable.java b/debug/org.eclipse.cdt.debug.core/src/org/eclipse/cdt/debug/internal/core/model/CVariable.java
index 77ad1210c96..5a2ad5a2b17 100644
--- a/debug/org.eclipse.cdt.debug.core/src/org/eclipse/cdt/debug/internal/core/model/CVariable.java
+++ b/debug/org.eclipse.cdt.debug.core/src/org/eclipse/cdt/debug/internal/core/model/CVariable.java
@@ -314,7 +314,7 @@ public abstract class CVariable extends AbstractCVariable implements ICDIEventLi
 	 */
 	public boolean supportsValueModification() {
 		try {
-			return getCurrentInternalVariable().isEditable();
+			return fIsEnabled ? getCurrentInternalVariable().isEditable() : false;
 		}
 		catch( DebugException e ) {
 		}