diff --git a/examples/exactly_once/main.go b/examples/exactly_once/main.go
index f3087824a..45f574f25 100644
--- a/examples/exactly_once/main.go
+++ b/examples/exactly_once/main.go
@@ -26,6 +26,7 @@ var (
 	destinationTopic = ""
 	oldest           = true
 	verbose          = false
+	assignor         = ""
 )
 
 func init() {
diff --git a/transaction_manager.go b/transaction_manager.go
index ca7e13dab..bf20b75e9 100644
--- a/transaction_manager.go
+++ b/transaction_manager.go
@@ -466,7 +466,7 @@ func (t *transactionManager) publishOffsetsToTxn(offsets topicPartitionOffsets,
 		resultOffsets = failedTxn
 
 		if len(resultOffsets) == 0 {
-			DebugLogger.Printf("txnmgr/txn-offset-commit [%s] successful txn-offset-commit with group %s %+v\n",
+			DebugLogger.Printf("txnmgr/txn-offset-commit [%s] successful txn-offset-commit with group %s\n",
 				t.transactionalID, groupId)
 			return resultOffsets, false, nil
 		}