diff --git a/Formula/pcal.rb b/Formula/pcal.rb
index 7c22df1487..dfff8bbe46 100644
--- a/Formula/pcal.rb
+++ b/Formula/pcal.rb
@@ -1,9 +1,9 @@
-require 'formula'
+require "formula"
 
 class Pcal < Formula
-  homepage 'http://pcal.sourceforge.net/'
-  url 'https://downloads.sourceforge.net/project/pcal/pcal/pcal-4.11.0/pcal-4.11.0.tgz'
-  sha1 '214bcb4c4b7bc986ae495c96f2ab169233a7f973'
+  homepage "http://pcal.sourceforge.net/"
+  url "https://downloads.sourceforge.net/project/pcal/pcal/pcal-4.11.0/pcal-4.11.0.tgz"
+  sha1 "214bcb4c4b7bc986ae495c96f2ab169233a7f973"
 
   def install
     ENV.deparallelize