diff --git a/gerrit-gwtui/src/main/java/com/google/gerrit/client/patches/PatchSetSelectBox.java b/gerrit-gwtui/src/main/java/com/google/gerrit/client/patches/PatchSetSelectBox.java
index 7f7a36e353..df12b706aa 100644
--- a/gerrit-gwtui/src/main/java/com/google/gerrit/client/patches/PatchSetSelectBox.java
+++ b/gerrit-gwtui/src/main/java/com/google/gerrit/client/patches/PatchSetSelectBox.java
@@ -190,10 +190,10 @@ public class PatchSetSelectBox extends Composite {
       return null;
     }
 
-    Patch.Key key =
-        (idSideA == null) ? patchKey : (new Patch.Key(idSideA, patchKey.get()));
+    Patch.Key key = (idActive == null) ? //
+        patchKey : (new Patch.Key(idActive, patchKey.get()));
 
-    String sideURL = (side == Side.A) ? "1" : "0";
+    String sideURL = (idActive == null) ? "1" : "0";
     final String base = GWT.getHostPageBaseURL() + "cat/";
 
     Image image = new Image(Gerrit.RESOURCES.downloadIcon());