diff --git a/PHPCI/Command/GenerateCommand.php b/PHPCI/Command/GenerateCommand.php
index 35188c3c..54a729ca 100644
--- a/PHPCI/Command/GenerateCommand.php
+++ b/PHPCI/Command/GenerateCommand.php
@@ -33,7 +33,7 @@ class GenerateCommand extends Command
     /**
     * Generates Model and Store classes by reading database meta data.
     */
-    protected function execute()
+    protected function execute(InputInterface $input, OutputInterface $output)
     {
         $gen = new \b8\Database\CodeGenerator(\b8\Database::getConnection(), 'PHPCI', PHPCI_DIR . '/PHPCI/');
         $gen->generateModels();
diff --git a/PHPCI/Command/InstallCommand.php b/PHPCI/Command/InstallCommand.php
index 73d962c7..2549e5cc 100644
--- a/PHPCI/Command/InstallCommand.php
+++ b/PHPCI/Command/InstallCommand.php
@@ -35,7 +35,7 @@ class InstallCommand extends Command
     /**
     * Installs PHPCI - Can be run more than once as long as you ^C instead of entering an email address.
     */
-    protected function execute()
+    protected function execute(InputInterface $input, OutputInterface $output)
     {
         // Gather initial data from the user:
         $dbHost = $this->ask('Enter your MySQL host: ');