diff --git a/src/apps/http/httpd.c b/src/apps/http/httpd.c
index 8c74eb3b..7c47ebac 100644
--- a/src/apps/http/httpd.c
+++ b/src/apps/http/httpd.c
@@ -2131,12 +2131,12 @@ http_parse_request(struct pbuf *inp, struct http_state *hs, struct altcp_pcb *pc
           } else
 #endif /* LWIP_HTTPD_SUPPORT_POST */
           {
-#if LWIP_HTTPD_HEADERS_BEFORE_FILE_OPEN
             err_t err;
+#if LWIP_HTTPD_HEADERS_BEFORE_FILE_OPEN
             void *obj;
             char replace_uri[LWIP_HTTPD_HEADERS_URI_REPLACE_LEN + 1];
             replace_uri[0] = 0;
-            obj = httpd_headers_before_file_open(crlf + 2, data_len - (crlf + 2 - data),
+            obj = httpd_headers_before_file_open(crlf + 2, (uint16_t)(data_len - (crlf + 2 - data)),
                                                 uri, replace_uri,
                                                 LWIP_HTTPD_HEADERS_URI_REPLACE_LEN);
             if (replace_uri[0] != 0) {
@@ -2146,7 +2146,7 @@ http_parse_request(struct pbuf *inp, struct http_state *hs, struct altcp_pcb *pc
             err = http_find_file(hs, uri, is_09);
 #if LWIP_HTTPD_HEADERS_AFTER_FILE_OPEN
             if (err == ERR_OK) {
-              httpd_headers_after_file_open(hs->handle, crlf + 2, data_len - (crlf + 2 - data)
+              httpd_headers_after_file_open(hs->handle, crlf + 2, (uint16_t)(data_len - (crlf + 2 - data))
 #if LWIP_HTTPD_HEADERS_BEFORE_FILE_OPEN
                                              , obj
 #endif /* LWIP_HTTPD_HEADERS_BEFORE_FILE_OPEN */