diff --git a/types/ember-feature-flags/ember-feature-flags-tests.ts b/types/ember-feature-flags/ember-feature-flags-tests.ts
index bfcfaae62e..b9962734c8 100644
--- a/types/ember-feature-flags/ember-feature-flags-tests.ts
+++ b/types/ember-feature-flags/ember-feature-flags-tests.ts
@@ -1,5 +1,6 @@
 import Features from 'ember-feature-flags';
 import 'ember-feature-flags/tests/helpers/with-feature';
+import 'ember-feature-flags/test-support';
 
 /** Static assertion that `value` has type `T` */
 // Disable tslint here b/c the generic is used to let us do a type coercion and
@@ -24,4 +25,5 @@ const setup = {
 };
 features.setup(setup); // $ExpectType void
 withFeature('new-homepage'); // $ExpectType void
+enableFeature('new-homepage'); // $ExpectType void
 assertType<boolean>(features.get('someFeature'));
diff --git a/types/ember-feature-flags/test-support/index.d.ts b/types/ember-feature-flags/test-support/index.d.ts
new file mode 100644
index 0000000000..efe14004d6
--- /dev/null
+++ b/types/ember-feature-flags/test-support/index.d.ts
@@ -0,0 +1 @@
+declare function enableFeature(name: string): void;
diff --git a/types/ember-feature-flags/tsconfig.json b/types/ember-feature-flags/tsconfig.json
index 5b5dc17f2d..957a7a00f8 100644
--- a/types/ember-feature-flags/tsconfig.json
+++ b/types/ember-feature-flags/tsconfig.json
@@ -47,6 +47,7 @@
     "files": [
         "index.d.ts",
         "tests/helpers/with-feature.d.ts",
+        "test-support/index.d.ts",
         "ember-feature-flags-tests.ts"
     ]
 }