diff --git a/bin/gem2rpm b/bin/gem2rpm
index 3b07dbd..c63532c 100755
--- a/bin/gem2rpm
+++ b/bin/gem2rpm
@@ -27,14 +27,9 @@ end
 rest = options[:args]
 
 template = nil
-if template_file.nil?
-  f = open('/etc/os-release', 'r') if File.exists?('/etc/os-release')
-  if f
-    f.read.split('\n').each do |line|
-      line.match(%r{^ID=(.*)$}) { |m| template_file=m[1] }
-    end
-    f.close
-    f = nil
+if template_file.nil? && File.exist?('/etc/os-release')
+  File.read('/etc/os-release').each_line(chomp: true) do |line|
+    line.match(%r{^ID=(.*)$}) { |m| template_file=m[1] }
   end
   if template_file.match? '^"opensuse'
     $stderr.puts 'Using template opensuse on openSUSE variant'
@@ -44,15 +39,13 @@ end
 if template_file.nil?
   template = Gem2Rpm::TEMPLATE
 else
+  template_file = File.join(Gem2Rpm.template_dir, template_file + '.spec.erb') unless File.exist?(template_file)
   begin
-    f = open(template_file, 'r') if File.exists?(template_file)
-    f = open(File.join(Gem2Rpm.template_dir, template_file + '.spec.erb'), 'r') unless f
+    template = File.read(template_file)
   rescue Errno::ENOENT
     $stderr.puts "Could not open template #{template_file}. Aborting"
     exit(1)
   end
-  template = f.read
-  f.close
 end
 
 if options[:print_template_file]