diff --git a/x-pack/plugins/security_solution/public/resolver/view/use_resolver_query_params.ts b/x-pack/plugins/security_solution/public/resolver/view/use_resolver_query_params.ts
index 70baef5fa88ea..8889c4803c8de 100644
--- a/x-pack/plugins/security_solution/public/resolver/view/use_resolver_query_params.ts
+++ b/x-pack/plugins/security_solution/public/resolver/view/use_resolver_query_params.ts
@@ -51,9 +51,15 @@ export function useResolverQueryParams() {
     const parsed = querystring.parse(urlSearch.slice(1));
     const crumbEvent = parsed[uniqueCrumbEventKey];
     const crumbId = parsed[uniqueCrumbIdKey];
+    function valueForParam(param: string | string[]): string {
+      if (Array.isArray(param)) {
+        return param[0] || '';
+      }
+      return param || '';
+    }
     return {
-      crumbEvent: Array.isArray(crumbEvent) ? crumbEvent[0] : crumbEvent,
-      crumbId: Array.isArray(crumbId) ? crumbId[0] : crumbId,
+      crumbEvent: valueForParam(crumbEvent),
+      crumbId: valueForParam(crumbId),
     };
   }, [urlSearch, uniqueCrumbIdKey, uniqueCrumbEventKey]);