diff --git a/lib/config.rb b/lib/config.rb
index 3763658..10bc496 100644
--- a/lib/config.rb
+++ b/lib/config.rb
@@ -12,7 +12,7 @@ def self.clean_yaml( yaml )
   # check if there is a transform for pub 
   def self.check_transform( yaml )
     if yaml['general']
-      transform = yaml['general']['pub_dir'] unless yaml['general']['pub_dir']
+      transform = yaml['general']['pub_dir'] if yaml['general']['pub_dir']
     end
   end