diff --git a/src/index.ts b/src/index.ts
index e9b47706..ad41acde 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -4,7 +4,11 @@ import * as fs from 'fs-extra'
 import * as _ from 'lodash'
 import * as globby from 'globby'
 
-import { ServerlessOptions, ServerlessInstance, ServerlessFunction } from './types'
+import {
+  ServerlessOptions,
+  ServerlessInstance,
+  ServerlessFunction
+} from './types'
 import * as typescript from './typescript'
 
 import { watchFiles } from './watchFiles'
@@ -14,7 +18,6 @@ const serverlessFolder = '.serverless'
 const buildFolder = '.build'
 
 export class TypeScriptPlugin {
-
   private originalServicePath: string
   private isWatching: boolean
 
@@ -47,7 +50,9 @@ export class TypeScriptPlugin {
         const emitedFiles = await this.compileTs()
         if (this.isWatching) {
           emitedFiles.forEach(filename => {
-            const module = require.resolve(path.resolve(this.originalServicePath, filename))
+            const module = require.resolve(
+              path.resolve(this.originalServicePath, filename)
+            )
             delete require.cache[module]
           })
         }
@@ -63,12 +68,20 @@ export class TypeScriptPlugin {
 
   get functions() {
     return this.options.function
-      ? { [this.options.function] : this.serverless.service.functions[this.options.function] }
+      ? {
+          [this.options.function]: this.serverless.service.functions[
+            this.options.function
+          ]
+        }
       : this.serverless.service.functions
   }
 
   get rootFileNames() {
-    return typescript.extractFileNames(this.originalServicePath, this.serverless.service.provider.name, this.functions)
+    return typescript.extractFileNames(
+      this.originalServicePath,
+      this.serverless.service.provider.name,
+      this.functions
+    )
   }
 
   prepare() {
@@ -78,10 +91,13 @@ export class TypeScriptPlugin {
       const fn = functions[fnName]
       fn.package = fn.package || {
         exclude: [],
-        include: [],
+        include: []
       }
       // Add plugin to excluded packages or an empty array if exclude is undefined
-      fn.package.exclude = _.uniq([...fn.package.exclude || [], 'node_modules/serverless-plugin-typescript'])
+      fn.package.exclude = _.uniq([
+        ...(fn.package.exclude || []),
+        'node_modules/serverless-plugin-typescript'
+      ])
     }
   }
 
@@ -119,7 +135,10 @@ export class TypeScriptPlugin {
       // Save original service path and functions
       this.originalServicePath = this.serverless.config.servicePath
       // Fake service path so that serverless will know what to zip
-      this.serverless.config.servicePath = path.join(this.originalServicePath, buildFolder)
+      this.serverless.config.servicePath = path.join(
+        this.originalServicePath,
+        buildFolder
+      )
     }
 
     const tsconfig = typescript.getTypescriptConfig(
@@ -142,7 +161,11 @@ export class TypeScriptPlugin {
     // Link or copy node_modules and package.json to .build so Serverless can
     // exlcude devDeps during packaging
     if (!fs.existsSync(outModulesPath)) {
-      await this.linkOrCopy(path.resolve('node_modules'), outModulesPath, 'junction')
+      await this.linkOrCopy(
+        path.resolve('node_modules'),
+        outModulesPath,
+        'junction'
+      )
     }
 
     if (!fs.existsSync(outPkgPath)) {
@@ -150,7 +173,10 @@ export class TypeScriptPlugin {
     }
 
     // include any "extras" from the "include" section
-    if (this.serverless.service.package.include && this.serverless.service.package.include.length > 0) {
+    if (
+      this.serverless.service.package.include &&
+      this.serverless.service.package.include.length > 0
+    ) {
       const files = await globby(this.serverless.service.package.include)
 
       for (const filename of files) {
@@ -162,7 +188,10 @@ export class TypeScriptPlugin {
         }
 
         if (!fs.existsSync(destFileName)) {
-          fs.copySync(path.resolve(filename), path.resolve(path.join(buildFolder, filename)))
+          fs.copySync(
+            path.resolve(filename),
+            path.resolve(path.join(buildFolder, filename))
+          )
         }
       }
     }
@@ -177,7 +206,7 @@ export class TypeScriptPlugin {
     if (this.options.function) {
       const fn = this.serverless.service.functions[this.options.function]
       const basename = path.basename(fn.package.artifact)
-      fn.package.artifact =  path.join(
+      fn.package.artifact = path.join(
         this.originalServicePath,
         serverlessFolder,
         path.basename(fn.package.artifact)
@@ -191,7 +220,9 @@ export class TypeScriptPlugin {
         this.serverless.service.functions[name].package.artifact = path.join(
           this.originalServicePath,
           serverlessFolder,
-          path.basename(this.serverless.service.functions[name].package.artifact)
+          path.basename(
+            this.serverless.service.functions[name].package.artifact
+          )
         )
       })
       return
@@ -233,13 +264,12 @@ export class TypeScriptPlugin {
     dstPath: string,
     type?: 'dir' | 'junction' | 'file'
   ): Promise<void> {
-    return fs.symlink(srcPath, dstPath, type)
-      .catch(error => {
-        if (error.code === 'EPERM' && error.errno === -4048) {
-          return fs.copy(srcPath, dstPath)
-        }
-        throw error
-      })
+    return fs.symlink(srcPath, dstPath, type).catch(error => {
+      if (error.code === 'EPERM' && error.errno === -4048) {
+        return fs.copy(srcPath, dstPath)
+      }
+      throw error
+    })
   }
 }