diff --git a/ftdetect/ruby-sinatra.vim b/ftdetect/ruby-sinatra.vim
old mode 100644
new mode 100755
index f5487fe..6d24930
--- a/ftdetect/ruby-sinatra.vim
+++ b/ftdetect/ruby-sinatra.vim
@@ -1,6 +1,6 @@
 " Ruby/Sinatra application name
 autocmd BufNewFile,BufRead *.rb
-  \ let lines  = getline(1).getline(2).getline(3).getline(3).getline(4).getline(5)
+  \ let lines  = getline(1).getline(2).getline(3).getline(4).getline(5)
   \|if lines =~? '[Ss]inatra'
   \|  set filetype=ruby-sinatra
   \|endif