diff --git a/ember-can/src/template-registry.ts b/ember-can/src/template-registry.ts
index 95fe197..f0751bf 100644
--- a/ember-can/src/template-registry.ts
+++ b/ember-can/src/template-registry.ts
@@ -2,6 +2,6 @@
 import CannotHelper from './helpers/cannot.ts';
 
 export default interface Registry {
-  Can: typeof CanHelper;
-  Cannot: typeof CannotHelper;
+  can: typeof CanHelper;
+  cannot: typeof CannotHelper;
 }