Strict check for defined variable

Closes #558
schmittjoh · Apr 11, 2017 · fb93c72 · fb93c72
1 parent e7a88dc
commit fb93c72
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/JMS/Serializer/Annotation/SerializedName.php b/src/JMS/Serializer/Annotation/SerializedName.php
@@ -30,7 +30,7 @@ final class SerializedName
 
     public function __construct(array $values)
     {
-        if ( ! is_string($values['value'])) {
+        if (!isset($values['value']) || !is_string($values['value'])) {
             throw new RuntimeException(sprintf('"value" must be a string.'));
         }