diff --git a/brut.apktool/apktool-lib/src/main/java/brut/androlib/res/data/value/ResEnumAttr.java b/brut.apktool/apktool-lib/src/main/java/brut/androlib/res/data/value/ResEnumAttr.java
index 50e7f615..64e51f0c 100644
--- a/brut.apktool/apktool-lib/src/main/java/brut/androlib/res/data/value/ResEnumAttr.java
+++ b/brut.apktool/apktool-lib/src/main/java/brut/androlib/res/data/value/ResEnumAttr.java
@@ -71,7 +71,7 @@ public class ResEnumAttr extends ResAttr {
                     break;
                 }
             }
-            if (ref != null) {
+            if (ref != null && !ref.referentIsNull()) {
                 value2 = ref.getReferent().getName();
                 mItemsCache.put(value, value2);
             }