diff --git a/pkgs/development/libraries/webkit/default.nix b/pkgs/development/libraries/webkit/default.nix
index ce00771e61a..78bb31055cb 100644
--- a/pkgs/development/libraries/webkit/default.nix
+++ b/pkgs/development/libraries/webkit/default.nix
@@ -35,7 +35,7 @@ rec {
     # https://bugs.webkit.org/show_bug.cgi?id=43863
     # "--enable-indexed-database"
 
-    "--enable-xhtmlmp"
+    # "--enable-xhtmlmp"
 
     # "--enable-input-speech"
 
diff --git a/pkgs/development/libraries/webkit/src-for-default.nix b/pkgs/development/libraries/webkit/src-for-default.nix
index dc9371cbe68..1a381077933 100644
--- a/pkgs/development/libraries/webkit/src-for-default.nix
+++ b/pkgs/development/libraries/webkit/src-for-default.nix
@@ -1,9 +1,9 @@
 rec {
-   version="r65398";
-   name="webkit-r65398";
-   hash="0y9pfhff1nyc818li8lqdkq906yi1r9n9zzmgymx8zpqxg8kcmk8";
-   url="http://builds.nightly.webkit.org/files/trunk/src/WebKit-r65398.tar.bz2";
-   advertisedUrl="http://builds.nightly.webkit.org/files/trunk/src/WebKit-r65398.tar.bz2";
+   version="r65727";
+   name="webkit-r65727";
+   hash="1cpwcivzdl9phladzn8sfpavz5l0hwdy0ssnxrpi2rpi15nfy5zd";
+   url="http://builds.nightly.webkit.org/files/trunk/src/WebKit-r65727.tar.bz2";
+   advertisedUrl="http://builds.nightly.webkit.org/files/trunk/src/WebKit-r65727.tar.bz2";
   
   
 }