diff --git a/INSTALL b/INSTALL
index f21c61ebb..21e8a4e86 100644
--- a/INSTALL
+++ b/INSTALL
@@ -9,10 +9,10 @@ INSTALL NOTES
    other than /usr/local (ie: --prefix=/opt).
 
    NOTE: if you use C2 security you need to use the --with-C2 flag to
-   configure.  Currently this only affects hpux, ultrix, and ConvexOS with
-   C2 security.  For hpux only, you can use --with-C2 if you are expecting
-   to migrate to C2 security later but it makes password lookups about
-   twice as slow.
+   configure.  Currently this only affects hpux, ultrix, DEF OSF/1 and
+   ConvexOS with C2 security.  For hpux only, you can use --with-C2 if
+   you are expecting to migrate to C2 security later but it makes password
+   lookups about twice as slow.
 
    NOTE2: if you use AFS, you need to run configure with --with-AFS
 
diff --git a/SUPPORTED b/SUPPORTED
index ca762155f..29ef3d025 100644
--- a/SUPPORTED
+++ b/SUPPORTED
@@ -10,7 +10,7 @@ Irix 4.x and 5.x
 KSR OS
 Linux (shadow password support untested)
 NextStep 2.x and 3.x
-DEC OSF/1 1.x and 2.0
+DEC OSF/1 1.x and 2.0 (w/ or w/o enhanced security, see INSTALL)
 SunOS 3.5 and 4.x
 Solaris 2.x
 Ultrix 4.x (w/ or w/o enhanced security, see INSTALL)