diff --git a/ext/ftp/php_ftp.c b/ext/ftp/php_ftp.c
index c303dbcae1f..7bd7f4b495f 100644
--- a/ext/ftp/php_ftp.c
+++ b/ext/ftp/php_ftp.c
@@ -40,6 +40,8 @@
 #define php_error php3_error
 #endif
 
+#include "ext/standard/file.h"
+
 #include "php_ftp.h"
 #include "ftp.h"