diff --git a/app/models/validations/tenancy_validations.rb b/app/models/validations/tenancy_validations.rb
index 4a356aab0..e2ea108cf 100644
--- a/app/models/validations/tenancy_validations.rb
+++ b/app/models/validations/tenancy_validations.rb
@@ -49,6 +49,6 @@ module Validations::TenancyValidations
   end
 
   def min_tenancy_length(record)
-    record.needstype == 2 || record.renttype == 3 ? 1 : 2
+    record.is_supported_housing? || record.renttype == 3 ? 1 : 2
   end
 end