diff --git a/ext/ftp/ftp.h b/ext/ftp/ftp.h
index 7abf6c0aaca..0588cbc6172 100644
--- a/ext/ftp/ftp.h
+++ b/ext/ftp/ftp.h
@@ -34,7 +34,7 @@
 #define	_FTP_H
 
 #include <stdio.h>
-#if HAVE_UINSTD_H
+#if !PHP_WIN32
 #include <netinet/in.h>
 #endif