diff --git a/lib/plaid/models/link_token_create_request.rb b/lib/plaid/models/link_token_create_request.rb
index e51d1464a..7f241c7b4 100644
--- a/lib/plaid/models/link_token_create_request.rb
+++ b/lib/plaid/models/link_token_create_request.rb
@@ -265,7 +265,7 @@ def list_invalid_properties
       end
 
 
-      if @country_codes.length < 1
+      if @country_codes && @country_codes.length < 1
         invalid_properties.push('invalid value for "country_codes", number of items must be greater than or equal to 1.')
       end