diff --git a/.changeset/heavy-lies-listen.md b/.changeset/heavy-lies-listen.md
new file mode 100644
index 0000000000..9f408b1ea8
--- /dev/null
+++ b/.changeset/heavy-lies-listen.md
@@ -0,0 +1,5 @@
+---
+'@backstage/plugin-kubernetes-backend': patch
+---
+
+Fix a bug where `getDefault` in the `kubernetesFetcherExtensionPoint` had the wrong `this` value
diff --git a/plugins/kubernetes-backend/src/service/KubernetesInitializer.ts b/plugins/kubernetes-backend/src/service/KubernetesInitializer.ts
index c32023235f..1b0b9a31e1 100644
--- a/plugins/kubernetes-backend/src/service/KubernetesInitializer.ts
+++ b/plugins/kubernetes-backend/src/service/KubernetesInitializer.ts
@@ -183,8 +183,9 @@ export class KubernetesInitializer {
 
   async init() {
     const fetcher =
-      (await this.opts.fetcher?.({ getDefault: this.defaultFetcher })) ??
-      (await this.defaultFetcher());
+      (await this.opts.fetcher?.({
+        getDefault: () => this.defaultFetcher(),
+      })) ?? (await this.defaultFetcher());
 
     const authStrategyMap =
       this.opts.authStrategyMap ?? (await this.defaultAuthStrategy());