diff --git a/omaha_request_action.h b/omaha_request_action.h
index e02c3be..c083abe 100644
--- a/omaha_request_action.h
+++ b/omaha_request_action.h
@@ -303,8 +303,8 @@
   void OnLookupPayloadViaP2PCompleted(const std::string& url);
 
   // Returns true if the current update should be ignored.
-  bool ShouldIgnoreUpdate(ErrorCode* error,
-                          const OmahaResponse& response) const;
+  bool ShouldIgnoreUpdate(const OmahaResponse& response,
+                          ErrorCode* error) const;
 
   // Return true if updates are allowed by user preferences.
   bool IsUpdateAllowedOverCellularByPrefs(const OmahaResponse& response) const;