diff --git a/app/models/derived_variables/case_log_variables.rb b/app/models/derived_variables/case_log_variables.rb
index e63112cb0..c8d69b11b 100644
--- a/app/models/derived_variables/case_log_variables.rb
+++ b/app/models/derived_variables/case_log_variables.rb
@@ -7,6 +7,7 @@ module DerivedVariables::CaseLogVariables
 
   def set_derived_fields!
     # TODO: Remove once we support supported housing logs
+    self.managing_organisation_id ||= owning_organisation_id
     self.needstype = 1 unless supported_housing_schemes_enabled?
     if rsnvac.present?
       self.newprop = has_first_let_vacancy_reason? ? 1 : 2