diff --git a/lib/geocoder/stores/active_record.rb b/lib/geocoder/stores/active_record.rb
index da1e0585f5a8635a64f0bd8ed6098bc4153f48d5..9587d840d7bb02fc99c30d43266c9cbfd17171de 100644
--- a/lib/geocoder/stores/active_record.rb
+++ b/lib/geocoder/stores/active_record.rb
@@ -195,7 +195,7 @@ module Geocoder::Store
           clause = (columns || full_column_name("*"))
         end
 
-        identifierType = using_postgresql? "::character(255)" : ""
+        identifierType = using_postgresql? ? "::character(255)" : ""
 
         if distance
           clause += ", " unless clause.empty?