diff --git a/runtime/synmenu.vim b/runtime/synmenu.vim
index 12cdcbd..b6ecf86 100644
--- a/runtime/synmenu.vim
+++ b/runtime/synmenu.vim
@@ -618,7 +618,7 @@
 an 50.170.100 &Syntax.WXYZ.WEB.CWEB :cal SetSyn("cweb")<CR>
 an 50.170.110 &Syntax.WXYZ.WEB.WEB :cal SetSyn("web")<CR>
 an 50.170.120 &Syntax.WXYZ.WEB.WEB\ Changes :cal SetSyn("change")<CR>
-an 50.170.130 &Syntax.WXYZ.WebAssembly :cal SetSyn("wast")<CR>
+an 50.170.130 &Syntax.WXYZ.WebAssembly :cal SetSyn("wat")<CR>
 an 50.170.140 &Syntax.WXYZ.Webmacro :cal SetSyn("webmacro")<CR>
 an 50.170.150 &Syntax.WXYZ.Website\ MetaLanguage :cal SetSyn("wml")<CR>
 an 50.170.170 &Syntax.WXYZ.wDiff :cal SetSyn("wdiff")<CR>