diff --git a/gerrit-gwtui/src/main/java/com/google/gerrit/client/patches/AbstractPatchContentTable.java b/gerrit-gwtui/src/main/java/com/google/gerrit/client/patches/AbstractPatchContentTable.java
index 82a717173b..05a9fb53a8 100644
--- a/gerrit-gwtui/src/main/java/com/google/gerrit/client/patches/AbstractPatchContentTable.java
+++ b/gerrit-gwtui/src/main/java/com/google/gerrit/client/patches/AbstractPatchContentTable.java
@@ -155,9 +155,6 @@ public abstract class AbstractPatchContentTable extends NavigationTable<Object>
     idSideA = a;
     idSideB = b;
 
-    final String pathName = patchKey.get();
-    int ext = pathName.lastIndexOf('.');
-
     render(s);
   }