diff --git a/Formula/cfitsio.rb b/Formula/cfitsio.rb
index c745ed5f60a..c35cd59cefa 100644
--- a/Formula/cfitsio.rb
+++ b/Formula/cfitsio.rb
@@ -1,30 +1,30 @@
-require 'formula'
+require "formula"
 
 class Cfitsio < Formula
-  homepage 'http://heasarc.gsfc.nasa.gov/docs/software/fitsio/fitsio.html'
-  url 'http://heasarc.gsfc.nasa.gov/FTP/software/fitsio/c/cfitsio3360.tar.gz'
-  mirror 'https://downloads.sourceforge.net/project/machomebrew/mirror/cfitsio-3.360.tar.gz'
-  sha1 '0d3099721a6bf1e763f158c447a74c5e8192412d'
-  version '3.360'
+  homepage "http://heasarc.gsfc.nasa.gov/docs/software/fitsio/fitsio.html"
+  url "http://heasarc.gsfc.nasa.gov/FTP/software/fitsio/c/cfitsio3370.tar.gz"
+  mirror "https://downloads.sourceforge.net/project/machomebrew/mirror/cfitsio-3.370.tar.gz"
+  sha1 "dbe3cc6981951d29200f442f4ab318f8899f9cc8"
+  version "3.370"
 
-  option 'with-examples', "Compile and install example programs"
+  option "with-examples", "Compile and install example programs"
 
-  resource 'examples' do
-    url 'http://heasarc.gsfc.nasa.gov/docs/software/fitsio/cexamples/cexamples.zip'
-    version '2014.01.23'
-    sha1 '39a66bb611bf611e7c88f0a410234c0d4955529c'
-  end if build.with? 'examples'
+  resource "examples" do
+    url "http://heasarc.gsfc.nasa.gov/docs/software/fitsio/cexamples/cexamples.zip"
+    version "2014.01.23"
+    sha1 "39a66bb611bf611e7c88f0a410234c0d4955529c"
+  end if build.with? "examples"
 
   def install
     system "./configure", "--prefix=#{prefix}"
     system "make shared"
     system "make install"
 
-    if build.with? 'examples'
+    if build.with? "examples"
       system "make fpack funpack"
-      bin.install 'fpack', 'funpack'
+      bin.install "fpack", "funpack"
 
-      resource('examples').stage do
+      resource("examples").stage do
         # compressed_fits.c does not work (obsolete function call)
         (Dir["*.c"] - ["compress_fits.c"]).each do |f|
           system ENV.cc, f, "-I#{include}", "-L#{lib}", "-lcfitsio", "-lm", "-o", "#{bin}/#{f.sub('.c', '')}"