diff --git a/library/CMakeLists.txt b/library/CMakeLists.txt
index 251b6c6..b8f663d 100644
--- a/library/CMakeLists.txt
+++ b/library/CMakeLists.txt
@@ -3,6 +3,7 @@
 option(LINK_WITH_PTHREAD "Explicitly link mbed TLS library to pthread." OFF)
 
 set(src_crypto
+    aead_chacha20_poly1305.c
     aes.c
     aesni.c
     arc4.c