diff --git a/Constraints/IsbnValidator.php b/Constraints/IsbnValidator.php
index e8e54eb63..786710049 100644
--- a/Constraints/IsbnValidator.php
+++ b/Constraints/IsbnValidator.php
@@ -163,8 +163,7 @@ protected function validateIsbn13($isbn)
         }
 
         for ($i = 1; $i < 12; $i += 2) {
-            $checkSum += $isbn[$i]
-            * 3;
+            $checkSum += $isbn[$i] * 3;
         }
 
         return 0 === $checkSum % 10 ? true : Isbn::CHECKSUM_FAILED_ERROR;
diff --git a/Constraints/IssnValidator.php b/Constraints/IssnValidator.php
index 8766b077b..aa83201cd 100644
--- a/Constraints/IssnValidator.php
+++ b/Constraints/IssnValidator.php
@@ -114,10 +114,7 @@ public function validate($value, Constraint $constraint)
         }
 
         // Calculate a checksum. "X" equals 10.
-        $checkSum = 'X' === $canonical[7]
-        || 'x' === $canonical[7]
-        ? 10
-            : $canonical[7];
+        $checkSum = 'X' === $canonical[7] || 'x' === $canonical[7] ? 10 : $canonical[7];
 
         for ($i = 0; $i < 7; ++$i) {
             // Multiply the first digit by 8, the second by 7, etc.