1 files changed, 1 insertions, 1 deletions
diff --git a/php/src/Google/Protobuf/Internal/EnumDescriptorProto.php b/php/src/Google/Protobuf/Internal/EnumDescriptorProto.php
index da30fa99..df912e55 100644
--- a/php/src/Google/Protobuf/Internal/EnumDescriptorProto.php
+++ b/php/src/Google/Protobuf/Internal/EnumDescriptorProto.php
@@ -143,7 +143,7 @@ class EnumDescriptorProto extends \Google\Protobuf\Internal\Message
      * @param \Google\Protobuf\Internal\EnumOptions $var
      * @return $this
      */
-    public function setOptions($var)
+    public function setOptions(\Google\Protobuf\Internal\EnumOptions $var = null)
     {
         GPBUtil::checkMessage($var, \Google\Protobuf\Internal\EnumOptions::class);
         $this->options = $var;