diff --git a/package.json b/package.json
index 4dfcb90..77784ec 100644
--- a/package.json
+++ b/package.json
@@ -55,7 +55,7 @@
 		"del-cli": "^1.1.0",
 		"nyc": "^11.2.1",
 		"tslint": "^5.8.0",
-		"tslint-xo": "^0.1.0",
+		"tslint-xo": "^0.2.0",
 		"typescript": "^2.6.1"
 	}
 }
diff --git a/source/index.ts b/source/index.ts
index 19ddf51..1583d7c 100644
--- a/source/index.ts
+++ b/source/index.ts
@@ -1,3 +1,3 @@
-import { ow } from './ow';
+import {ow} from './ow';
 
 export = ow;
diff --git a/source/lib/operators/not.ts b/source/lib/operators/not.ts
index 074db7a..03a7c69 100644
--- a/source/lib/operators/not.ts
+++ b/source/lib/operators/not.ts
@@ -1,4 +1,4 @@
-import { Predicate, Validator, validatorSymbol } from '../predicates/predicate';
+import {Predicate, Validator, validatorSymbol} from '../predicates/predicate';
 
 /**
  * Operator which inverts all the validations.
diff --git a/source/lib/predicates/boolean.ts b/source/lib/predicates/boolean.ts
index 1050efa..994c2f9 100644
--- a/source/lib/predicates/boolean.ts
+++ b/source/lib/predicates/boolean.ts
@@ -1,7 +1,6 @@
-import { Predicate, Context } from './predicate';
+import {Predicate, Context} from './predicate';
 
 export class BooleanPredicate extends Predicate<boolean> {
-
 	constructor(context?: Context) {
 		super('boolean', context);
 	}
diff --git a/source/lib/predicates/number.ts b/source/lib/predicates/number.ts
index b19ebc7..784779c 100644
--- a/source/lib/predicates/number.ts
+++ b/source/lib/predicates/number.ts
@@ -1,8 +1,7 @@
 import * as is from '@sindresorhus/is';
-import { Predicate, Context } from './predicate';
+import {Predicate, Context} from './predicate';
 
 export class NumberPredicate extends Predicate<number> {
-
 	constructor(context?: Context) {
 		super('number', context);
 	}
diff --git a/source/lib/predicates/predicate.ts b/source/lib/predicates/predicate.ts
index ad248d2..88cafe0 100644
--- a/source/lib/predicates/predicate.ts
+++ b/source/lib/predicates/predicate.ts
@@ -1,5 +1,5 @@
 import * as is from '@sindresorhus/is';
-import { not } from '../operators/not';
+import {not} from '../operators/not';
 
 export interface Validator<T> {
 	message(value: T): string;
@@ -13,10 +13,11 @@ export interface Context {
 export const validatorSymbol = Symbol('validators');
 
 export abstract class Predicate<T = any> {
-
 	constructor(
 		type: string,
-		private context: Context = { validators: [] }
+		private context: Context = {
+			validators: []
+		}
 	) {
 		this.addValidator({
 			message: value => `Expected argument to be of type \`${type}\` but received type \`${is(value)}\``,
diff --git a/source/lib/predicates/string.ts b/source/lib/predicates/string.ts
index d7b70e5..7849b3e 100644
--- a/source/lib/predicates/string.ts
+++ b/source/lib/predicates/string.ts
@@ -1,8 +1,7 @@
 import * as valiDate from 'vali-date';
-import { Predicate, Context } from './predicate';
+import {Predicate, Context} from './predicate';
 
 export class StringPredicate extends Predicate<string> {
-
 	constructor(context?: Context) {
 		super('string', context);
 	}
diff --git a/source/ow.ts b/source/ow.ts
index f1d6213..9f3b05a 100644
--- a/source/ow.ts
+++ b/source/ow.ts
@@ -1,8 +1,8 @@
-import { ArgumentError } from './lib/argument-error';
-import { Predicate, validatorSymbol } from './lib/predicates/predicate';
-import { StringPredicate } from './lib/predicates/string';
-import { NumberPredicate } from './lib/predicates/number';
-import { BooleanPredicate } from './lib/predicates/boolean';
+import {ArgumentError} from './lib/argument-error';
+import {Predicate, validatorSymbol} from './lib/predicates/predicate';
+import {StringPredicate} from './lib/predicates/string';
+import {NumberPredicate} from './lib/predicates/number';
+import {BooleanPredicate} from './lib/predicates/boolean';
 
 export interface Ow {
 	(value: any, predicate: Predicate): void;
@@ -21,7 +21,7 @@ export interface Ow {
 }
 
 const main = (value: any, predicate: Predicate) => {
-	for (const { validator, message } of predicate[validatorSymbol]) {
+	for (const {validator, message} of predicate[validatorSymbol]) {
 		if (!validator(value)) {
 			// TODO: Modify the stack output to show the original `ow()` call instead of this `throw` statement
 			throw new ArgumentError(message(value), main);
diff --git a/tslint.json b/tslint.json
index 55e9f36..4fa05e5 100644
--- a/tslint.json
+++ b/tslint.json
@@ -1,3 +1,6 @@
 {
-	"extends": "tslint-xo"
+	"extends": "tslint-xo",
+	"rules": {
+		"completed-docs": [true, "methods"]
+	}
 }