diff --git a/src/main.ts b/src/main.ts
index 9b3bd25..d707c90 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -1,8 +1,3 @@
-interface CustomElement extends HTMLElement {
-	setState(key_path: string, value: unknown): void
-	getState(key_path: string): unknown
-}
-
 interface ComponentOptions {
 	tag: string
 	template: string
diff --git a/src/types.d.ts b/src/types.d.ts
new file mode 100644
index 0000000..9b7a3b9
--- /dev/null
+++ b/src/types.d.ts
@@ -0,0 +1,4 @@
+interface CustomElement extends HTMLElement {
+	setState(key_path: string, value: unknown): void
+	getState(key_path: string): unknown
+}