diff --git a/views/static/api.jade b/views/static/api.jade
index d33d4e370c..0fd99bcde7 100644
--- a/views/static/api.jade
+++ b/views/static/api.jade
@@ -1,4 +1,4 @@
-!!! 5
+doctype 5
 html
   head
     title Swagger UI