src/nnn.c | 2 ++

diff --git a/src/nnn.c b/src/nnn.c
index 2d9be92e648c4d0bf322082c597b5f89764043ec..53d8575dd85ed30eafb9cc733db8e4259747e1b5 100644
--- a/src/nnn.c
+++ b/src/nnn.c
@@ -3513,7 +3513,9 @@ 		if (!open_max)
 			open_max = max_openfds();
 	}
 
+#if _POSIX_C_SOURCE >= 200112L
 	posix_fadvise(fd, 0, 0, POSIX_FADV_SEQUENTIAL);
+#endif
 
 	dp = readdir(dirp);
 	if (!dp)