diff --git a/http_parser.c b/http_parser.c
index 5a0972a..122ede1 100644
--- a/http_parser.c
+++ b/http_parser.c
@@ -1384,6 +1384,7 @@ size_t http_parser_execute (http_parser *parser,
               break;
 
             default:
+              parser->state = state;
               return p - data; /* Error */
           }
         }