diff --git a/lib/jasper-command-line.rb b/lib/jasper-command-line.rb
index 8c43aa2..eb2fd6d 100644
--- a/lib/jasper-command-line.rb
+++ b/lib/jasper-command-line.rb
@@ -2,6 +2,7 @@
 
 require 'logger'
 require "rjb"
+require 'active_support'
 require 'active_support/core_ext'
 require 'tempfile'
 require 'jasper-command-line/version'
@@ -28,4 +29,4 @@ def self.logger
   def self.ghostscript_available?
     !`which gs`.empty?
   end
-end
\ No newline at end of file
+end