diff --git a/src/index.ts b/src/index.ts
index 23580eb..fcea0ba 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -24,15 +24,19 @@ export abstract class AlpineComponent {
     [key: string]: any;
 }
 
-export declare type Alpine = {
+export interface Alpine {
 	version: string;
 	pauseMutationObserver: boolean;
-	magicProperties: { [name: string]: CallableFunction };
+	magicProperties: { [name: string]: (el: HTMLElement) => void };
 	ignoreFocusedForValueBinding: boolean;
-	onComponentInitializeds: Array<CallableFunction>;
-	onBeforeComponentInitializeds: Array<CallableFunction>;
-	onComponentInitialized: (callback: CallableFunction) => void;
-	onBeforeComponentInitialized: (callback: CallableFunction) => void;
+	onComponentInitializeds: Array<(component: AlpineComponent) => void>;
+	onBeforeComponentInitializeds: Array<(component: AlpineComponent) => void>;
+	onComponentInitialized: (
+		callback: (component: AlpineComponent) => void,
+	) => void;
+	onBeforeComponentInitialized: (
+		callback: (component: AlpineComponent) => void,
+	) => void;
 	listenForNewUninitializedComponentsAtRunTime: () => undefined;
 	discoverUninitializedComponents: (
 		callback: (rootEl: HTMLElement) => void,
@@ -40,10 +44,14 @@ export declare type Alpine = {
 	) => void;
 	discoverComponents: (callback: (rootEl: HTMLElement) => void) => void;
 	start: () => void;
-	addMagicProperty: (name: string, callback: ($el: HTMLElement) => void) => void;
+	addMagicProperty: (
+		name: string,
+		callback: ($el: HTMLElement) => void,
+	) => void;
 	clone: (component: AlpineComponent, newEl: HTMLElement) => void;
-};
 
+	[key: string]: any;
+}
 export function registerComponents(components: { [name: string]: Function }): { [name: string]: ComponentConstructor } {
     Object.entries(components).forEach(([name, file]) => {
         component(name, file);