diff --git a/app/reporting-framework/json-reports/ml-predictions/ml-weekly-predictions-base.json b/app/reporting-framework/json-reports/ml-predictions/ml-weekly-predictions-base.json
index 49d787416..f2fa4b3a7 100644
--- a/app/reporting-framework/json-reports/ml-predictions/ml-weekly-predictions-base.json
+++ b/app/reporting-framework/json-reports/ml-predictions/ml-weekly-predictions-base.json
@@ -188,6 +188,11 @@
         "conditionExpression": "(if((pre.is_successful_phone_follow_up = 'NO' OR (pre.attempted_home_visit = 'YES' AND pre.was_client_found = 'NO')), 1, 0)) = ?",
         "parameterName": "failedOutcome"
       },
+      {
+        "filterType": "tableColumns",
+        "conditionExpression": "(if((pre.is_successful_phone_follow_up IS NULL AND pre.attempted_home_visit IS NULL AND pre.was_client_found IS NULL), 0, 1)) = ?",
+        "parameterName": "unknownOutcome"
+      },
       {
         "filterType": "tableColumns",
         "conditionExpression": "ml.predicted_risk is not null"