diff --git a/src/exceptions/SWI-exception.xml b/src/exceptions/SWI-exception.xml
index b4af96981..a2bbd37da 100644
--- a/src/exceptions/SWI-exception.xml
+++ b/src/exceptions/SWI-exception.xml
@@ -4,6 +4,9 @@
    <crossRefs>
       <crossRef>https://github.com/SWI-Prolog/packages-clpqr/blob/bfa80b9270274f0800120d5b8e6fef42ac2dc6a5/clpqr/class.pl</crossRef>
    </crossRefs>
+      <notes>This exception is the same as GNU-compiler-exception but 
+         delineates that the library is compiled with a Free Softare compiler, 
+         which is slightly broader than a GNU compiler.</notes>
    <text>
       <p>
          As a special exception, if you link this library with other