diff --git a/build/org.eclipse.cdt.managedbuilder.core/src/org/eclipse/cdt/managedbuilder/projectconverter/UpdateManagedProject20.java b/build/org.eclipse.cdt.managedbuilder.core/src/org/eclipse/cdt/managedbuilder/projectconverter/UpdateManagedProject20.java
index ab4550c0133..9ad21ead1cc 100644
--- a/build/org.eclipse.cdt.managedbuilder.core/src/org/eclipse/cdt/managedbuilder/projectconverter/UpdateManagedProject20.java
+++ b/build/org.eclipse.cdt.managedbuilder.core/src/org/eclipse/cdt/managedbuilder/projectconverter/UpdateManagedProject20.java
@@ -392,11 +392,13 @@ class UpdateManagedProject20 {
 		for(int i = 0; i < options.length; i++){
 			IOption curOption = options[i]; 
 			IOption parent = curOption.getSuperClass();
-			//String curOptionId = curOption.getId();
-			
 			if(parent == null)
 				continue;
 			
+			for (;parent.getSuperClass()!=null;parent = parent.getSuperClass()) {
+				// empty body, the loop is to find superclass
+			}
+			
 			String parentId = parent.getId();
 			if(!parentId.equals(optId))
 				continue;