diff --git a/ext/session/mod_files.c b/ext/session/mod_files.c
index 3191875ed5a..94bf5c7b76e 100644
--- a/ext/session/mod_files.c
+++ b/ext/session/mod_files.c
@@ -30,7 +30,11 @@
 
 #include <sys/stat.h>
 #include <sys/types.h>
+
+#if HAVE_SYS_FILE_H
 #include <sys/file.h>
+#endif
+
 #include <fcntl.h>
 
 #include "php.h"