diff --git a/src/HotUpdate/HotUpdateProcess.php b/src/HotUpdate/HotUpdateProcess.php
index eb6052e..294a8dc 100644
--- a/src/HotUpdate/HotUpdateProcess.php
+++ b/src/HotUpdate/HotUpdateProcess.php
@@ -312,7 +312,7 @@ private function closeBuildRuntime(): void
             $buildRuntimeHandler = $this->buildRuntimeHandler;
             $buildRuntimePipes = $this->buildRuntimePipes;
             $status = proc_get_status($buildRuntimeHandler);
-            if (false !== $status && ($status['running'] ?? false))
+            if (false !== $status && $status['running'])
             {
                 $writeContent = "n\n";
                 fwrite($buildRuntimePipes[0], $writeContent);