diff --git a/lib/spanish_vat_validators.rb b/lib/spanish_vat_validators.rb
index 6ed814c..98abeef 100644
--- a/lib/spanish_vat_validators.rb
+++ b/lib/spanish_vat_validators.rb
@@ -33,7 +33,7 @@ def validate_cif(v)
         false
       else
         ultima = texto[8,1]
-	      
+
         [1,3,5,7].collect do |cont|
           xxx = (2 * texto[cont,1].to_i).to_s + "0"
           impares += xxx[0,1].to_i + xxx[1,1].to_i