diff --git a/src/domain/navigation/index.ts b/src/domain/navigation/index.ts
index 5f084d0f..0c36e21b 100644
--- a/src/domain/navigation/index.ts
+++ b/src/domain/navigation/index.ts
@@ -106,7 +106,7 @@ function roomsSegmentWithRoom(rooms: Segment<SegmentType, "rooms">, roomId: stri
     }
 }
 
-function pushRightPanelSegment<T extends keyof SegmentType>(array: Segment<SegmentType>[], segment: T, ...value: OptionalValue<SegmentType[T]>) {
+function pushRightPanelSegment<T extends keyof SegmentType>(array: Segment<SegmentType>[], segment: T, ...value: OptionalValue<SegmentType[T]>): void {
     array.push(new Segment("right-panel"));
     array.push(new Segment(segment, ...value));
 }