diff --git a/.htaccess b/.htaccess
index 4716fa1..cbc9b18 100644
--- a/.htaccess
+++ b/.htaccess
@@ -169,7 +169,7 @@ AddEncoding gzip svgz
 
     # Serve correct content types, and prevent mod_deflate double gzip.
     RewriteRule \.css\.gz$ - [T=text/css,E=no-gzip:1]
-    RewriteRule \.js\.gz$ - [T=text/javascript,E=no-gzip:1]
+    RewriteRule \.js\.gz$ - [T=application/javascript,E=no-gzip:1]
 
     <FilesMatch "(\.js\.gz|\.css\.gz)$">
       # Serve correct encoding type.
@@ -187,3 +187,9 @@ AddEncoding gzip svgz
   # Disable Proxy header, since it's an attack vector.
   RequestHeader unset Proxy
 </IfModule>
+
+<IfModule mod_mime.c>
+  # Normalize to standard type.
+  # https://tools.ietf.org/html/rfc4329#section-7.2
+  AddType application/javascript .js
+</IfModule>