diff --git a/comprehensive-gpl-guide.tex b/comprehensive-gpl-guide.tex
index f6543e696a207d335e62b60afd2c37016715c09b..54dcac9efc6d2a2da3866a218476ec324a0af72f 100644
--- a/comprehensive-gpl-guide.tex
+++ b/comprehensive-gpl-guide.tex
@@ -190,6 +190,8 @@ material is \textbf{not equivalent} to attending a course.
 
 \input{enforcement-case-studies}
 
+\input{cc-by-sa}
+
 \appendix
 
 \part{Appendices}
