diff --git a/lib/includes/nghttp2/nghttp2.h b/lib/includes/nghttp2/nghttp2.h
index 705b4cad..66df0077 100644
--- a/lib/includes/nghttp2/nghttp2.h
+++ b/lib/includes/nghttp2/nghttp2.h
@@ -624,11 +624,14 @@ typedef struct {
    * The number of name/value pairs in |nva|.
    */
   size_t nvlen;
+  /**
+   * The category of this HEADERS frame.
+   */
+  nghttp2_headers_category cat;
   /**
    * The priority.
    */
   int32_t pri;
-  nghttp2_headers_category cat;
 } nghttp2_headers;
 
 /**