diff --git a/build/post-compile.js b/build/post-compile.js
index 2d3796393..310578134 100644
--- a/build/post-compile.js
+++ b/build/post-compile.js
@@ -31,7 +31,7 @@
     source = source
       .replace(/(document[^&]+&&)\s*(?:\w+|!\d)/, '$1!({toString:0}+"")')
       .replace(/"\t"/g, '"\\t"')
-      .replace(/"[^"]*?\\u180e[^"]*?"/g,
+      .replace(/"[^"]*?\\f[^"]*?"/g,
         '" \\t\\x0B\\f\\xa0\\ufeff' +
         '\\n\\r\\u2028\\u2029' +
         '\\u1680\\u180e\\u2000\\u2001\\u2002\\u2003\\u2004\\u2005\\u2006\\u2007\\u2008\\u2009\\u200a\\u202f\\u205f\\u3000"'