diff --git a/basis/unix/statfs/netbsd/netbsd.factor b/basis/unix/statfs/netbsd/netbsd.factor
index 042cd79ada..c58d6e1a0d 100644
--- a/basis/unix/statfs/netbsd/netbsd.factor
+++ b/basis/unix/statfs/netbsd/netbsd.factor
@@ -54,13 +54,13 @@ file-system-type-name mount-from ;
         [ statvfs-f_iosize >>io-size ]
         [ statvfs-f_blocks >>blocks ]
         [ statvfs-f_bfree >>blocks-free ]
-        [ statvfs-f_favail >>flag ]
-        [ statvfs-f_fresvd >>flag ]
+        [ statvfs-f_favail >>blocks-available ]
+        [ statvfs-f_fresvd >>blocks-reserved ]
         [ statvfs-f_files >>files ]
         [ statvfs-f_ffree >>ffree ]
         [ statvfs-f_syncreads >>sync-reads ]
         [ statvfs-f_syncwrites >>sync-writes ]
-        [ statvfs-f_asyncreads >>async-writes ]
+        [ statvfs-f_asyncreads >>async-reads ]
         [ statvfs-f_asyncwrites >>async-writes ]
         [ statvfs-f_fsidx >>fsidx ]
         [ statvfs-f_namemax >>namemax ]