diff --git a/src/Stream.php b/src/Stream.php
index 69f5ed8..aafba8e 100644
--- a/src/Stream.php
+++ b/src/Stream.php
@@ -408,7 +408,7 @@ public function isPipe(): bool
             if ($this->stream) {
                 $stats = fstat($this->stream);
 
-                if ($stats) {
+                if (is_array($stats)) {
                     $this->isPipe = isset($stats['mode']) && ($stats['mode'] & self::FSTAT_MODE_S_IFIFO) !== 0;
                 }
             }