diff --git a/INSTALL.md b/INSTALL.md
index b01fef0..e8af31e 100644
--- a/INSTALL.md
+++ b/INSTALL.md
@@ -6,11 +6,11 @@ Use `make all` to build, `make install` to install relative to `PREFIX`
 (`/usr/local` by default).  The `DESTDIR` convention is respected.
 
 `mblaze` has been tested on
+- Linux 4.11 (glibc 2.25)
 - Linux 4.7 (glibc 2.24)
 - Linux 4.7 (musl 1.1.15)
 - Linux 3.2 (glibc 2.13)
 - FreeBSD 11.0
 - OpenBSD 5.9
+- OpenBSD 6.1
 - Windows 10 (Version 1151) with Cygwin 2.3.1(0.291/5/3)
-
-On OpenBSD, you must use `make OPENBSD=1` and provide `libiconv`.