diff --git a/src/Host/Host.php b/src/Host/Host.php
index f4a476ea4..6055b5396 100644
--- a/src/Host/Host.php
+++ b/src/Host/Host.php
@@ -278,7 +278,7 @@ public function connectionOptions(): array
             }
         }
         if ($this->has('port')) {
-            $options = array_merge($options, ['-p', $this->getPort()]);
+            $options = array_merge($options, ['-p', (string) $this->getPort()]);
         }
         if ($this->has('config_file')) {
             $options = array_merge($options, ['-F', parse_home_dir($this->getConfigFile())]);