diff --git a/sha1_file.c b/sha1_file.c
index 67e815b..b114cc9 100644
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -2138,7 +2138,7 @@
 		if (!data)
 			die("failed to apply delta");
 
-		free (delta_data);
+		free(delta_data);
 	}
 
 	*final_type = type;