diff --git a/test/ResourceOutputStreamTest.php b/test/ResourceOutputStreamTest.php
index 49f0171..a1441d7 100644
--- a/test/ResourceOutputStreamTest.php
+++ b/test/ResourceOutputStreamTest.php
@@ -64,7 +64,7 @@ public function testClosedRemoteSocket(): ?\Generator
         \fclose($b);
 
         $this->expectException(StreamException::class);
-        $this->expectExceptionMessage(/* S|s */ "end of 6 bytes failed with errno=32 Broken pipe");
+        $this->expectExceptionMessage(/* S|s */ "end of 6 bytes failed with errno=" . (\stripos(PHP_OS, "win") === 0 ? "10053" : "32 Broken pipe"));
 
         // The first write still succeeds somehow...
         yield $stream->write("foobar");