diff --git a/src/Faker/Provider/DateTime.php b/src/Faker/Provider/DateTime.php
index 2f5206717c..aa62f0098a 100644
--- a/src/Faker/Provider/DateTime.php
+++ b/src/Faker/Provider/DateTime.php
@@ -126,7 +126,7 @@ public static function dateTimeBetween($startDate = '-30 years', $endDate = 'now
      * @example dateTimeInInterval('1999-02-02 11:42:52', '+ 5 days')
      * @return \DateTime
      */
-    public static function dateTimeInInterval($date = '-30 years', $interval = '+ 5 days')
+    public static function dateTimeInInterval($date = '-30 years', $interval = '+5 days')
     {
         $intervalObject = \DateInterval::createFromDateString($interval);
         $datetime       = $date instanceof \DateTime ? $date : new \DateTime($date);
diff --git a/test/Faker/Provider/DateTimeTest.php b/test/Faker/Provider/DateTimeTest.php
index ccd42c6df0..abc65e2215 100644
--- a/test/Faker/Provider/DateTimeTest.php
+++ b/test/Faker/Provider/DateTimeTest.php
@@ -78,7 +78,7 @@ public function providerDateTimeBetween()
      *
      * @dataProvider providerDateTimeInInterval
      */
-    public function testDateTimeInInterval($start, $interval = "+ 5 days", $isInFutur)
+    public function testDateTimeInInterval($start, $interval = "+5 days", $isInFutur)
     {
         $date = DateTimeProvider::dateTimeInInterval($start, $interval);
         $this->assertInstanceOf('\DateTime', $date);
@@ -97,9 +97,9 @@ public function testDateTimeInInterval($start, $interval = "+ 5 days", $isInFutu
     public function providerDateTimeInInterval()
     {
         return array(
-            array('-1 year', '+5 minute', false),
+            array('-1 year', null, true),
             array('-1 day', '-1 hour', false),
-            array('-1 day', '+ 1 hour', true),
+            array('-1 day', '+1 hour', true),
         );
     }