diff --git a/awx/ui/static/js/system-tracking/compare-facts/main.js b/awx/ui/static/js/system-tracking/compare-facts/main.js
index 404a6b04a1..df8aa67e15 100644
--- a/awx/ui/static/js/system-tracking/compare-facts/main.js
+++ b/awx/ui/static/js/system-tracking/compare-facts/main.js
@@ -48,7 +48,7 @@ export function compareFacts(module, facts) {
                     })
                     .value();
     } else {
-        return {    factData: compareNestedFacts(facts),
+        return {    factData: compareNestedFacts(facts[0], facts[1]),
                     isNestedDisplay: true
                };
     }
diff --git a/awx/ui/static/js/system-tracking/compare-facts/nested.js b/awx/ui/static/js/system-tracking/compare-facts/nested.js
index 0261044ccc..a3943cad7c 100644
--- a/awx/ui/static/js/system-tracking/compare-facts/nested.js
+++ b/awx/ui/static/js/system-tracking/compare-facts/nested.js
@@ -6,8 +6,9 @@
 
 import {formatFacts, findFacts} from './nested-helpers';
 
-export default function nestedCompare(factsList) {
+export default function nestedCompare(basisFacts, comparatorFacts) {
 
+    var factsList = [basisFacts, comparatorFacts];
     factsList = findFacts(factsList);
     factsList = compareFacts(factsList);
     return formatFacts(factsList);