diff --git a/sign_update.rb b/sign_update.rb
index 351e43f46..199ea40cc 100755
--- a/sign_update.rb
+++ b/sign_update.rb
@@ -4,4 +4,4 @@
   exit
 end
 openssl = "/usr/bin/openssl"
-puts `#{openssl} dgst -sha1 -binary < "#{ARGV[0]}" | openssl dgst -dss1 -sign "#{ARGV[1]}" | openssl enc -base64`
\ No newline at end of file
+puts `#{openssl} dgst -sha1 -binary < "#{ARGV[0]}" | #{openssl} dgst -dss1 -sign "#{ARGV[1]}" | #{openssl} enc -base64`
\ No newline at end of file