diff --git a/http_parser.c b/http_parser.c
index 2c8416b..987addd 100644
--- a/http_parser.c
+++ b/http_parser.c
@@ -1316,7 +1316,9 @@ size_t http_parser_execute (http_parser *parser,
 
         nread = 0;
 
-        if (parser->flags & F_UPGRADE || parser->method == HTTP_CONNECT) parser->upgrade = 1;
+        if (parser->flags & F_UPGRADE || parser->method == HTTP_CONNECT) {
+          parser->upgrade = 1;
+        }
 
         /* Here we call the headers_complete callback. This is somewhat
          * different than other callbacks because if the user returns 1, we