$arg_... variable
diff --git a/src/http/ngx_http_request.c b/src/http/ngx_http_request.c
index 2a0ed7a..61a41d4 100644
--- a/src/http/ngx_http_request.c
+++ b/src/http/ngx_http_request.c
@@ -647,6 +647,7 @@
 
             r->request_line.len = r->request_end - r->request_start;
             r->request_line.data = r->request_start;
+            *r->request_end = '\0';
 
 
             if (r->args_start) {