diff --git a/src/index.ts b/src/index.ts
index 7301520..17672aa 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -10,7 +10,9 @@ export type WildcardHandler<T = Record<string, unknown>> = (
 
 // An array of all currently registered event handlers for a type
 export type EventHandlerList<T = unknown> = Array<Handler<T>>;
-export type WildCardEventHandlerList<T = Record<string, unknown>> = Array<WildcardHandler<T>>;
+export type WildCardEventHandlerList<T = Record<string, unknown>> = Array<
+	WildcardHandler<T>
+>;
 
 // A map of event types and their corresponding event handlers.
 export type EventHandlerMap<Events extends Record<EventType, unknown>> = Map<
@@ -24,11 +26,16 @@ export interface Emitter<Events extends Record<EventType, unknown>> {
 	on<Key extends keyof Events>(type: Key, handler: Handler<Events[Key]>): void;
 	on(type: '*', handler: WildcardHandler<Events>): void;
 
-	off<Key extends keyof Events>(type: Key, handler?: Handler<Events[Key]>): void;
+	off<Key extends keyof Events>(
+		type: Key,
+		handler?: Handler<Events[Key]>
+	): void;
 	off(type: '*', handler: WildcardHandler<Events>): void;
 
 	emit<Key extends keyof Events>(type: Key, event: Events[Key]): void;
-	emit<Key extends keyof Events>(type: undefined extends Events[Key] ? Key : never): void;
+	emit<Key extends keyof Events>(
+		type: undefined extends Events[Key] ? Key : never
+	): void;
 }
 
 /**
@@ -45,7 +52,6 @@ export default function mitt<Events extends Record<EventType, unknown>>(
 	all = all || new Map();
 
 	return {
-
 		/**
 		 * A Map of event names to registered handler functions.
 		 */
@@ -61,8 +67,7 @@ export default function mitt<Events extends Record<EventType, unknown>>(
 			const handlers: Array<GenericEventHandler> | undefined = all!.get(type);
 			if (handlers) {
 				handlers.push(handler);
-			}
-			else {
+			} else {
 				all!.set(type, [handler] as EventHandlerList<Events[keyof Events]>);
 			}
 		},
@@ -79,8 +84,7 @@ export default function mitt<Events extends Record<EventType, unknown>>(
 			if (handlers) {
 				if (handler) {
 					handlers.splice(handlers.indexOf(handler) >>> 0, 1);
-				}
-				else {
+				} else {
 					all!.set(type, []);
 				}
 			}
diff --git a/test/index_test.ts b/test/index_test.ts
index 723dfa6..31c9495 100644
--- a/test/index_test.ts
+++ b/test/index_test.ts
@@ -44,17 +44,13 @@ describe('mitt#', () => {
 
 	describe('properties', () => {
 		it('should expose the event handler map', () => {
-			expect(inst)
-				.to.have.property('all')
-				.that.is.a('map');
+			expect(inst).to.have.property('all').that.is.a('map');
 		});
 	});
 
 	describe('on()', () => {
 		it('should be a function', () => {
-			expect(inst)
-				.to.have.property('on')
-				.that.is.a('function');
+			expect(inst).to.have.property('on').that.is.a('function');
 		});
 
 		it('should register handler for new type', () => {
@@ -111,9 +107,7 @@ describe('mitt#', () => {
 
 	describe('off()', () => {
 		it('should be a function', () => {
-			expect(inst)
-				.to.have.property('off')
-				.that.is.a('function');
+			expect(inst).to.have.property('off').that.is.a('function');
 		});
 
 		it('should remove handler for type', () => {
@@ -165,9 +159,7 @@ describe('mitt#', () => {
 
 	describe('emit()', () => {
 		it('should be a function', () => {
-			expect(inst)
-				.to.have.property('emit')
-				.that.is.a('function');
+			expect(inst).to.have.property('emit').that.is.a('function');
 		});
 
 		it('should invoke handler for type', () => {