1 files changed, 1 insertions, 1 deletions

diff --git a/src/main/java/cuchaz/enigma/analysis/TranslationIndex.java b/src/main/java/cuchaz/enigma/analysis/TranslationIndex.java
index 644a3f2..b2ddc5f 100644
--- a/src/main/java/cuchaz/enigma/analysis/TranslationIndex.java
+++ b/src/main/java/cuchaz/enigma/analysis/TranslationIndex.java
@@ -84,7 +84,7 @@ public class TranslationIndex {
 
                 // add the superclass
                 ClassEntry superclassEntry = entryPool.getClass(superName);
-                if (!isJre(superclassEntry)) {
+                if (superclassEntry != null) {
                         this.superclasses.put(classEntry, superclassEntry);
                 }