diff --git a/src/Illuminate/Console/Scheduling/ManagesFrequencies.php b/src/Illuminate/Console/Scheduling/ManagesFrequencies.php
index ac6279a1512..594f7ddeada 100644
--- a/src/Illuminate/Console/Scheduling/ManagesFrequencies.php
+++ b/src/Illuminate/Console/Scheduling/ManagesFrequencies.php
@@ -390,11 +390,11 @@ public function twiceDailyAt($first = 1, $second = 13, $offset = 0)
     protected function hourBasedSchedule($minutes, $hours)
     {
         if (is_array($hours) || is_int($hours)) {
-            array_walk((array)$hours, $this->validateHour(...));
+            array_walk((array) $hours, $this->validateHour(...));
         }
 
         if (is_array($minutes) || is_int($minutes)) {
-            array_walk((array)$minutes, $this->validateMinute(...));
+            array_walk((array) $minutes, $this->validateMinute(...));
         }
 
         $minutes = is_array($minutes) ? implode(',', $minutes) : $minutes;
diff --git a/src/Illuminate/Console/Scheduling/ValidatesFrequencies.php b/src/Illuminate/Console/Scheduling/ValidatesFrequencies.php
index e036fa17a17..96a8ffe0f16 100644
--- a/src/Illuminate/Console/Scheduling/ValidatesFrequencies.php
+++ b/src/Illuminate/Console/Scheduling/ValidatesFrequencies.php
@@ -9,42 +9,42 @@
 trait ValidatesFrequencies
 {
     /**
-     * @param int $hours
+     * @param  int  $hours
      */
     protected function validateHour(int $hour)
     {
         if ($hour < 0 || $hour > HOURS_PER_DAY) {
-            throw new InvalidArgumentException("Hour cron expression component must be between 0 and " . HOURS_PER_DAY . ". [$hour] given");
+            throw new InvalidArgumentException("Hour cron expression component must be between 0 and ".HOURS_PER_DAY.". [$hour] given");
         }
     }
 
     /**
-     * @param int $dayOfWeek
+     * @param  int  $dayOfWeek
      */
     protected function validateDayOfWeek(int $dayOfWeek)
     {
         if ($dayOfWeek < 0 || $dayOfWeek > DAYS_PER_WEEK) {
-            throw new InvalidArgumentException("Day of week cron expression component must be between 0 and " . DAYS_PER_WEEK . ". [$dayOfWeek] given");
+            throw new InvalidArgumentException("Day of week cron expression component must be between 0 and ".DAYS_PER_WEEK.". [$dayOfWeek] given");
         }
     }
 
     /**
-     * @param int $month
+     * @param  int  $month
      */
     protected function validateMonth(int $month)
     {
         if ($month < 0 || $month > MONTHS_PER_YEAR) {
-            throw new InvalidArgumentException("Month cron expression component must be between 0 and " . MONTHS_PER_YEAR . ". [$month] given");
+            throw new InvalidArgumentException("Month cron expression component must be between 0 and ".MONTHS_PER_YEAR.". [$month] given");
         }
     }
 
     /**
-     * @param int $month
+     * @param  int  $month
      */
     protected function validateDayOfMonth(int $dayOfMonth)
     {
         if ($month < 0 || $month > MONTHS_PER_YEAR) {
-            throw new InvalidArgumentException("Month cron expression component must be between 0 and " . MONTHS_PER_YEAR . ". [$month] given");
+            throw new InvalidArgumentException("Month cron expression component must be between 0 and ".MONTHS_PER_YEAR.". [$month] given");
         }
     }
 }