diff --git a/plugins/catalog-react/api-report.md b/plugins/catalog-react/api-report.md
index b2b098ec68..f6ead9a31a 100644
--- a/plugins/catalog-react/api-report.md
+++ b/plugins/catalog-react/api-report.md
@@ -441,7 +441,7 @@ export function humanizeEntityRef(
   entityRef: Entity | CompoundEntityRef,
   opts?: {
     defaultKind?: string;
-    defaultNamespace?: string | boolean;
+    defaultNamespace?: string | false;
   },
 ): string;
 
diff --git a/plugins/catalog-react/src/components/EntityRefLink/humanize.ts b/plugins/catalog-react/src/components/EntityRefLink/humanize.ts
index 358b6a5851..bfc8e2af84 100644
--- a/plugins/catalog-react/src/components/EntityRefLink/humanize.ts
+++ b/plugins/catalog-react/src/components/EntityRefLink/humanize.ts
@@ -29,7 +29,7 @@ export function humanizeEntityRef(
   entityRef: Entity | CompoundEntityRef,
   opts?: {
     defaultKind?: string;
-    defaultNamespace?: string | boolean;
+    defaultNamespace?: string | false;
   },
 ) {
   const defaultKind = opts?.defaultKind;