diff --git a/src/lib/isEmail.js b/src/lib/isEmail.js
index d1c35bd46..d5b920af4 100644
--- a/src/lib/isEmail.js
+++ b/src/lib/isEmail.js
@@ -160,7 +160,7 @@ export default function isEmail(str, options) {
     }
   }
 
-  if (user[0] === '"') {
+  if (user[0] === '"' && user[user.length - 1] === '"') {
     user = user.slice(1, user.length - 1);
     return options.allow_utf8_local_part ?
       quotedEmailUserUtf8.test(user) :
diff --git a/test/validators.test.js b/test/validators.test.js
index 239f172ca..f87bb2eda 100644
--- a/test/validators.test.js
+++ b/test/validators.test.js
@@ -32,6 +32,7 @@ describe('Validators', () => {
         'test@1337.com',
       ],
       invalid: [
+        '"invalid@gmail.com',
         'invalidemail@',
         'invalid.com',
         '@invalid.com',