diff --git a/lib/ext2fs/namei.c b/lib/ext2fs/namei.c
index ae39eec..9824977 100644
--- a/lib/ext2fs/namei.c
+++ b/lib/ext2fs/namei.c
@@ -11,7 +11,9 @@
 
 #include <stdio.h>
 #include <string.h>
+#if HAVE_UNISTD_H
 #include <unistd.h>
+#endif
 #include <stdlib.h>
 #if HAVE_ERRNO_H
 #include <errno.h>