diff --git a/gpl-lgpl.tex b/gpl-lgpl.tex
index 9c54e64048cf386136788485f587fb76f8354c40..1ed9e9031076e7961b1f1a2ca31efb4ac6377a4f 100644
--- a/gpl-lgpl.tex
+++ b/gpl-lgpl.tex
@@ -3566,13 +3566,18 @@ requirements hat GPLv3 are as follows:
   advertising rights).  The third clause of the
   \href{http://opensource.org/licenses/BSD-3-Clause}{3-Clause BSD
   License}, for example, long considered de-facto compatible with GPLv2
-    anyway, is via this clause unequivocally compatible with GPLv3.  However,
-    \href{https://www.gnu.org/licenses/license-list.html#OriginalBSD}{this
-      clause \textit{does not} make GPL compatible with the old BSD
-      advertising clause} that the FSF
-    \href{https://www.gnu.org/philosophy/bsd.html}{long ago identified as
-      problematic}.
- 
+  anyway, is via this clause unequivocally compatible with GPLv3.  However,
+  \href{https://www.gnu.org/licenses/license-list.html#OriginalBSD}{this
+  clause \textit{does not} make GPL compatible with the old BSD
+  advertising clause} that the FSF
+  \href{https://www.gnu.org/philosophy/bsd.html}{long ago identified as
+  problematic}.  BSD removed this clause from it's license in 1999; but
+  licenses retaining an analagous clause are still prevalent today, notably
+  the \href{https://www.gnu.org/licenses/license-list.html#OpenSSL}{OpenSSL
+  License} of the widely-used OpenSSL library.  For this reason,
+  section \ref{bsd4clause-openssl} of this guide is devoted entirely
+  to that particular conflict.
+
 \item This provision clarifies that refusal to grant trademark rights for a
   GPLv3'd covered work remains compatible with GPLv3.  Again, some
   non-copyleft permissive licenses include such clauses.