diff --git a/library/CMakeLists.txt b/library/CMakeLists.txt
index 6177ca2..78bab7f 100644
--- a/library/CMakeLists.txt
+++ b/library/CMakeLists.txt
@@ -13,6 +13,7 @@
     blowfish.c
     camellia.c
     ccm.c
+    chacha20.c
     cipher.c
     cipher_wrap.c
     cmac.c