diff --git a/runtime/syntax/php.vim b/runtime/syntax/php.vim
index 4bcff13..4e6b95c 100644
--- a/runtime/syntax/php.vim
+++ b/runtime/syntax/php.vim
@@ -83,7 +83,7 @@
   endif
   so <sfile>:p:h/html.vim
 else
-  runtime syntax/html.vim
+  runtime! syntax/html.vim
   unlet b:current_syntax
 endif