diff --git a/fetch-pack.c b/fetch-pack.c
index cb45c346ea..601f0779a1 100644
--- a/fetch-pack.c
+++ b/fetch-pack.c
@@ -240,7 +240,7 @@ static enum ack_type get_ack(int fd, unsigned char *result_sha1)
 			return ACK;
 		}
 	}
-	die(_("git fetch_pack: expected ACK/NAK, got '%s'"), line);
+	die(_("git fetch-pack: expected ACK/NAK, got '%s'"), line);
 }
 
 static void send_request(struct fetch_pack_args *args,