diff --git a/lib/rubocop/cop/rails/link_to_blank.rb b/lib/rubocop/cop/rails/link_to_blank.rb
index 2ec78e44ec..fb61fb97f7 100644
--- a/lib/rubocop/cop/rails/link_to_blank.rb
+++ b/lib/rubocop/cop/rails/link_to_blank.rb
@@ -86,7 +86,7 @@ def add_rel(send_node, offence_node, corrector)
         def contains_noopener?(value)
           return false unless value
 
-          rel_array = value.to_s.split(' ')
+          rel_array = value.to_s.split
           rel_array.include?('noopener') || rel_array.include?('noreferrer')
         end
       end