diff --git a/src/Console/Command/ProcessCommand.php b/src/Console/Command/ProcessCommand.php
index 9921bf66ad2..cfbf9d1281f 100644
--- a/src/Console/Command/ProcessCommand.php
+++ b/src/Console/Command/ProcessCommand.php
@@ -251,7 +251,7 @@ final class ProcessCommand extends AbstractCommand
 
         // some errors were found → fail
         if ($this->errorAndDiffCollector->getErrors() !== []) {
-            return ShellCode::SUCCESS;
+            return ShellCode::ERROR;
         }
 
         // inverse error code for CI dry-run