diff --git a/Exception/ProcessException.php b/Exception/ProcessException.php
new file mode 100644
index 0000000..57454db
--- /dev/null
+++ b/Exception/ProcessException.php
@@ -0,0 +1,18 @@
+<?php
+
+namespace Phobetor\RabbitMqSupervisorBundle\Exception;
+
+use Symfony\Component\Process\Process;
+
+class ProcessException extends \RuntimeException
+{
+    /**
+     * ProcessException constructor.
+     *
+     * @param Process $process
+     */
+    public function __construct(Process $process)
+    {
+        parent::__construct($process->getExitCodeText(), $process->getExitCode());
+    }
+}
diff --git a/Services/Supervisor.php b/Services/Supervisor.php
index de2dd02..da05a1a 100644
--- a/Services/Supervisor.php
+++ b/Services/Supervisor.php
@@ -2,6 +2,7 @@
 
 namespace Phobetor\RabbitMqSupervisorBundle\Services;
 
+use Phobetor\RabbitMqSupervisorBundle\Exception\ProcessException;
 use Symfony\Component\Process\Process;
 
 class Supervisor
@@ -35,6 +36,10 @@ public function execute($cmd)
         $p->setWorkingDirectory($this->applicationDirectory);
         $p->run();
         $p->wait();
+        if ($p->getExitCode() !== 0) {
+            throw new ProcessException($p);
+        }
+
         return $p;
     }
 
@@ -63,6 +68,9 @@ public function run()
             );
             $p->setWorkingDirectory($this->applicationDirectory);
             $p->run();
+            if ($p->getExitCode() !== 0) {
+                throw new ProcessException($p);
+            }
         }
     }
 }