diff --git a/src/Commands/ConfigViewCommand.php b/src/Commands/ConfigViewCommand.php
index a82654c..fb667f5 100644
--- a/src/Commands/ConfigViewCommand.php
+++ b/src/Commands/ConfigViewCommand.php
@@ -30,7 +30,7 @@ protected function configure()
             ->setDescription('View configuration path');
     }
 
-    protected function execute(InputInterface $input, OutputInterface $output)
+    protected function execute(InputInterface $input, OutputInterface $output): int
     {
         $output->writeln("Config file: <info>{$this->config->configFile}</info>");
         $output->writeln("Data directory: <info>{$this->config->dataDir}</info>\n");
diff --git a/src/Commands/TranslationAddCommand.php b/src/Commands/TranslationAddCommand.php
index 77a9cf5..11d195b 100644
--- a/src/Commands/TranslationAddCommand.php
+++ b/src/Commands/TranslationAddCommand.php
@@ -39,7 +39,7 @@ protected function configure()
             ->addUsage('ms.basmeih');
     }
 
-    protected function execute(InputInterface $input, OutputInterface $output)
+    protected function execute(InputInterface $input, OutputInterface $output): int
     {
         $translation = $input->getArgument('translation');
 
diff --git a/src/Commands/TranslationListCommand.php b/src/Commands/TranslationListCommand.php
index 5c3dbe9..841a353 100644
--- a/src/Commands/TranslationListCommand.php
+++ b/src/Commands/TranslationListCommand.php
@@ -29,7 +29,7 @@ protected function configure()
             ->setDescription('View available translations');
     }
 
-    protected function execute(InputInterface $input, OutputInterface $output)
+    protected function execute(InputInterface $input, OutputInterface $output): int
     {
         $translations = $this->translations();