diff --git a/devfront/src/features/overview/recentClientChanges.ts b/devfront/src/features/overview/recentClientChanges.ts
index c5930c27..b331346d 100644
--- a/devfront/src/features/overview/recentClientChanges.ts
+++ b/devfront/src/features/overview/recentClientChanges.ts
@@ -274,21 +274,23 @@ export function buildRecentClientChangeDetails(
   }
 
   if (action === "ADD_RELATION" || action === "REMOVE_RELATION") {
-    const source = sourceDetails;
+    const source = sourceDetails as Record<string, unknown>;
+    const relation = source.relation;
+    const subject = source.subject;
     return [
-      ...(source.relation
+      ...(typeof relation === "string" && relation
         ? [
             {
               label: getRecentClientFieldLabel("relation"),
-              value: formatAuditValue(source.relation),
+              value: formatAuditValue(relation),
             },
           ]
         : []),
-      ...(source.subject
+      ...(typeof subject === "string" && subject
         ? [
             {
               label: getRecentClientFieldLabel("subject"),
-              value: formatAuditValue(source.subject),
+              value: formatAuditValue(subject),
             },
           ]
         : []),