diff --git a/library/CMakeLists.txt b/library/CMakeLists.txt
index 33e2cfc..7e11816 100644
--- a/library/CMakeLists.txt
+++ b/library/CMakeLists.txt
@@ -103,6 +103,7 @@
     ssl_srv.c
     ssl_ticket.c
     ssl_tls.c
+    ssl_tls13_keys.c
 )
 
 if(CMAKE_COMPILER_IS_GNUCC)