diff --git a/ircd/fs_aio.cc b/ircd/fs_aio.cc
index c935a5950..c90176bf5 100644
--- a/ircd/fs_aio.cc
+++ b/ircd/fs_aio.cc
@@ -38,7 +38,8 @@ ircd::fs::aio::support
 decltype(ircd::fs::aio::support_fsync)
 ircd::fs::aio::support_fsync
 {
-	false //TODO: get this info
+	info::kversion[0] >= 4 &&
+	info::kversion[1] >= 18
 };
 
 /// True if IOCB_CMD_FDSYNC is supported by AIO. If this is false then
@@ -46,7 +47,8 @@ ircd::fs::aio::support_fsync
 decltype(ircd::fs::aio::support_fdsync)
 ircd::fs::aio::support_fdsync
 {
-	false //TODO: get this info
+	info::kversion[0] >= 4 &&
+	info::kversion[1] >= 18
 };
 
 decltype(ircd::fs::aio::MAX_EVENTS)