diff --git a/web/static/globals.d.ts b/web/static/globals.d.ts
new file mode 100644
index 00000000..4b658c7f
--- /dev/null
+++ b/web/static/globals.d.ts
@@ -0,0 +1,3 @@
+interface Type<T> extends Function {
+  new (...args: any[]): T;
+}
diff --git a/web/static/src/ts/registry.ts b/web/static/src/ts/registry.ts
index e2cc42b3..602d5e76 100644
--- a/web/static/src/ts/registry.ts
+++ b/web/static/src/ts/registry.ts
@@ -4,9 +4,6 @@ import { Env } from "./env";
 //------------------------------------------------------------------------------
 // Types
 //------------------------------------------------------------------------------
-interface Type<T> extends Function {
-  new (...args: any[]): T;
-}
 
 type ActionWidget = Type<Widget<Env>>;
 
diff --git a/web/static/src/ts/services/action_manager.ts b/web/static/src/ts/services/action_manager.ts
index dbe5d86e..47fd88eb 100644
--- a/web/static/src/ts/services/action_manager.ts
+++ b/web/static/src/ts/services/action_manager.ts
@@ -10,10 +10,6 @@ import { Query, IRouter } from "./router";
 // Types
 //------------------------------------------------------------------------------
 
-interface Type<T> extends Function {
-  new (...args: any[]): T;
-}
-
 export interface ClientAction {
   type: "client";
   name: string;