diff --git a/src/Symfony/Component/Console/Tests/ApplicationTest.php b/src/Symfony/Component/Console/Tests/ApplicationTest.php
index 4693535051124..4f6e6cb96cf32 100644
--- a/src/Symfony/Component/Console/Tests/ApplicationTest.php
+++ b/src/Symfony/Component/Console/Tests/ApplicationTest.php
@@ -79,6 +79,7 @@ protected function tearDown(): void
             pcntl_signal(\SIGTERM, \SIG_DFL);
             pcntl_signal(\SIGUSR1, \SIG_DFL);
             pcntl_signal(\SIGUSR2, \SIG_DFL);
+            pcntl_signal(\SIGALRM, \SIG_DFL);
         }
     }
 
diff --git a/src/Symfony/Component/Console/Tests/ConsoleEventsTest.php b/src/Symfony/Component/Console/Tests/ConsoleEventsTest.php
index 9c04d2706e8da..408f8c0d35c58 100644
--- a/src/Symfony/Component/Console/Tests/ConsoleEventsTest.php
+++ b/src/Symfony/Component/Console/Tests/ConsoleEventsTest.php
@@ -39,6 +39,7 @@ protected function tearDown(): void
             pcntl_signal(\SIGTERM, \SIG_DFL);
             pcntl_signal(\SIGUSR1, \SIG_DFL);
             pcntl_signal(\SIGUSR2, \SIG_DFL);
+            pcntl_signal(\SIGALRM, \SIG_DFL);
         }
     }
 
diff --git a/src/Symfony/Component/Console/Tests/SignalRegistry/SignalRegistryTest.php b/src/Symfony/Component/Console/Tests/SignalRegistry/SignalRegistryTest.php
index f997f7c1d8cee..92d500f9ee4e5 100644
--- a/src/Symfony/Component/Console/Tests/SignalRegistry/SignalRegistryTest.php
+++ b/src/Symfony/Component/Console/Tests/SignalRegistry/SignalRegistryTest.php
@@ -27,6 +27,7 @@ protected function tearDown(): void
         pcntl_signal(\SIGTERM, \SIG_DFL);
         pcntl_signal(\SIGUSR1, \SIG_DFL);
         pcntl_signal(\SIGUSR2, \SIG_DFL);
+        pcntl_signal(\SIGALRM, \SIG_DFL);
     }
 
     public function testOneCallbackForASignalSignalIsHandled()