diff --git a/apps/btadv/app.ts b/apps/btadv/app.ts
index 15128e484..c66ba3449 100644
--- a/apps/btadv/app.ts
+++ b/apps/btadv/app.ts
@@ -1,7 +1,7 @@
 // ts helpers:
 const __assign = Object.assign;
 
-const Layout = require("Layout") as Layout_.Layout;
+const Layout = require("Layout");
 
 Bangle.loadWidgets();
 Bangle.drawWidgets();
diff --git a/typescript/types/modules.d.ts b/typescript/types/modules.d.ts
new file mode 100644
index 000000000..5c65548fc
--- /dev/null
+++ b/typescript/types/modules.d.ts
@@ -0,0 +1,7 @@
+// locally declared modules
+declare function require(moduleName: "locale"): Locale.Locale;
+declare function require(moduleName: "sched"): typeof Sched;
+
+declare function require(moduleName: "ClockFace"): typeof ClockFace_.ClockFace;
+declare function require(moduleName: "clock_info"): typeof ClockInfo;
+declare function require(moduleName: "Layout"): typeof Layout_.Layout;