diff --git a/.changeset/dry-horses-report.md b/.changeset/dry-horses-report.md
new file mode 100644
index 0000000000..b7a0b4cd46
--- /dev/null
+++ b/.changeset/dry-horses-report.md
@@ -0,0 +1,5 @@
+---
+'@backstage/backend-test-utils': patch
+---
+
+Sync feature installation compatibility logic with `@backstage/backend-app-api`.
diff --git a/packages/backend-test-utils/src/next/wiring/TestBackend.ts b/packages/backend-test-utils/src/next/wiring/TestBackend.ts
index 4471f6ed24..36e7073e4d 100644
--- a/packages/backend-test-utils/src/next/wiring/TestBackend.ts
+++ b/packages/backend-test-utils/src/next/wiring/TestBackend.ts
@@ -209,10 +209,19 @@ function isPromise<T>(value: unknown | Promise<T>): value is Promise<T> {
   );
 }
 
+// Same as in the backend-app-api, handles double defaults from dynamic imports
 function unwrapFeature(
-  feature: BackendFeature | (() => BackendFeature),
+  feature: BackendFeature | { default: BackendFeature },
 ): BackendFeature {
-  return typeof feature === 'function' ? feature() : feature;
+  if ('$$type' in feature) {
+    return feature;
+  }
+
+  if ('default' in feature) {
+    return feature.default;
+  }
+
+  return feature;
 }
 
 const backendInstancesToCleanUp = new Array<Backend>();