diff --git a/sql/schema.sql b/sql/schema.sql
index cce549c..e2c02c3 100644
--- a/sql/schema.sql
+++ b/sql/schema.sql
@@ -103,7 +103,7 @@ $$ LANGUAGE SQL IMMUTABLE;
 
 
 CREATE OR REPLACE FUNCTION is_english_locale(locale text) RETURNS bool AS $$
-  SELECT locale IS NULL OR locale LIKE 'en%';
+  SELECT locale IS NULL OR locale = '' OR locale LIKE 'en%';
 $$ IMMUTABLE LANGUAGE SQL;