diff --git a/ivette/src/dome/renderer/dome.tsx b/ivette/src/dome/renderer/dome.tsx
index de4868433588cbe584bc77615061e3b3b56bfb80..d04e21d20fcd440535875bf7d366fbf13040dc04 100644
--- a/ivette/src/dome/renderer/dome.tsx
+++ b/ivette/src/dome/renderer/dome.tsx
@@ -181,7 +181,7 @@ export function useEmitter(
   emitter: undefined | null | Emitter,
   event: undefined | null | string,
   callback: () => void,
-) {
+): void {
   return React.useEffect((): (undefined | (() => void)) => {
     if (emitter && event) {
       emitter.on(event, callback);