diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/clippy/client/CopyableLabel.java b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/clippy/client/CopyableLabel.java
index 7a5f44f4ca..242caedeb6 100644
--- a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/clippy/client/CopyableLabel.java
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/clippy/client/CopyableLabel.java
@@ -71,6 +71,10 @@ public class CopyableLabel extends Composite implements HasText {
   private TextBox textBox;
   private Element swf;
 
+  public CopyableLabel() {
+    this("");
+  }
+
   /**
    * Create a new label
    *