diff --git a/src/types/stores.d.ts b/src/types/stores.d.ts
index 08900862..1a3046ae 100644
--- a/src/types/stores.d.ts
+++ b/src/types/stores.d.ts
@@ -1 +1,6 @@
-export type UIStore = {};
+type MainUiSlice = {
+  mainDrawerOpen: boolean;
+  setMainDrawerOpen: (open: boolean) => void;
+};
+
+export type UIStore = MainUiSlice;