diff --git a/pkgs/data/sgml+xml/schemas/xml-dtd/docbook/builder.sh b/pkgs/data/sgml+xml/schemas/xml-dtd/docbook/builder.sh
index cb270f7ef2bb..8b52ebd70b44 100644
--- a/pkgs/data/sgml+xml/schemas/xml-dtd/docbook/builder.sh
+++ b/pkgs/data/sgml+xml/schemas/xml-dtd/docbook/builder.sh
@@ -3,5 +3,5 @@ source $stdenv/setup
 mkdir -p $out/xml/dtd/docbook
 cd $out/xml/dtd/docbook
 unpackFile $src
-find -type f -exec chmod -x {} \;
+find . -type f -exec chmod -x {} \;
 eval "$postInstall"