diff --git a/atom/browser/api/atom_api_cookies.cc b/atom/browser/api/atom_api_cookies.cc
index bdcfb4cd261b..bcdbceb31ec3 100644
--- a/atom/browser/api/atom_api_cookies.cc
+++ b/atom/browser/api/atom_api_cookies.cc
@@ -258,7 +258,7 @@ v8::Local<v8::Promise> Cookies::Set(const base::DictionaryValue& details) {
                                     : base::Time::UnixEpoch();
 
   GURL url(url_string ? *url_string : "");
-  if (url.is_empty()) {
+  if (!url.is_valid()) {
     promise.RejectWithErrorMessage(InclusionStatusToString(
         net::CanonicalCookie::CookieInclusionStatus::EXCLUDE_INVALID_DOMAIN));
     return handle;
diff --git a/docs/api/cookies.md b/docs/api/cookies.md
index d56af39ced35..85ab55bd271b 100644
--- a/docs/api/cookies.md
+++ b/docs/api/cookies.md
@@ -84,7 +84,7 @@ the response.
 #### `cookies.set(details)`
 
 * `details` Object
-  * `url` String - The url to associate the cookie with. An error is thrown if the url is invalid.
+  * `url` String - The url to associate the cookie with. The promise will be rejected if the url is invalid.
   * `name` String (optional) - The name of the cookie. Empty by default if omitted.
   * `value` String (optional) - The value of the cookie. Empty by default if omitted.
   * `domain` String (optional) - The domain of the cookie; this will be normalized with a preceding dot so that it's also valid for subdomains. Empty by default if omitted.