diff --git a/src/Command/Version/SetCommand.php b/src/Command/Version/SetCommand.php
index adff895..4877651 100644
--- a/src/Command/Version/SetCommand.php
+++ b/src/Command/Version/SetCommand.php
@@ -30,7 +30,7 @@ protected function configure()
         $this->setDefinition(
             new InputDefinition([
                 new InputArgument('version', InputArgument::REQUIRED),
-                new InputOption('dev', InputOption::VALUE_NONE)
+                new InputOption('dev', null, InputOption::VALUE_NONE)
             ])
         );
     }