diff --git a/proto/text.go b/proto/text.go
index 8214ce3..965876b 100644
--- a/proto/text.go
+++ b/proto/text.go
@@ -154,7 +154,7 @@
 
 func (w *textWriter) unindent() {
 	if w.ind == 0 {
-		log.Printf("proto: textWriter unindented too far")
+		log.Print("proto: textWriter unindented too far")
 		return
 	}
 	w.ind--