diff --git a/sql/rpl_injector.h b/sql/rpl_injector.h
index 6a1c724809a..446b319535c 100644
--- a/sql/rpl_injector.h
+++ b/sql/rpl_injector.h
@@ -146,7 +146,6 @@ public:
       };
 
       transaction() : m_thd(NULL) { }
-      transaction(transaction const&);
       ~transaction();
 
       /* Clear transaction, i.e., make calls to 'good()' return false. */