diff --git a/ls.rb b/ls.rb
index 31432e7..d2e56a7 100644
--- a/ls.rb
+++ b/ls.rb
@@ -83,22 +83,15 @@ def permission(file_stat)
 end
 
 def file_type(file_stat)
-  case file_stat.ftype
-  when 'file'
-    print '-'
-  when 'directory'
-    print 'd'
-  when 'characterSpecial'
-    print 'c'
-  when 'blockSpecial'
-    print 'b'
-  when 'fifo'
-    print 'p'
-  when 'link'
-    print 'l'
-  when 'socket'
-    print 's'
-  end
+  {
+    'fifo' => 'p',
+    'characterSpecial' => 'c',
+    'directory' => 'd',
+    'blockSpecial' => 'b',
+    'file' => '-',
+    'link' => 'l',
+    'socket' => 's'
+  }[file_stat]
 end
 
 def file_size(filenames)