diff --git a/scm-plugins/scm-hg-plugin/src/main/java/sonia/scm/repository/HgHookManager.java b/scm-plugins/scm-hg-plugin/src/main/java/sonia/scm/repository/HgHookManager.java
index d5fb3da52e..698e0f68da 100644
--- a/scm-plugins/scm-hg-plugin/src/main/java/sonia/scm/repository/HgHookManager.java
+++ b/scm-plugins/scm-hg-plugin/src/main/java/sonia/scm/repository/HgHookManager.java
@@ -153,7 +153,7 @@ public class HgHookManager
    */
   public boolean isAcceptAble(String challenge)
   {
-    return challenge.equals(challenge);
+    return this.challenge.equals(challenge);
   }
 
   //~--- methods --------------------------------------------------------------