diff --git a/library/CMakeLists.txt b/library/CMakeLists.txt
index eeda06a..5c297e0 100644
--- a/library/CMakeLists.txt
+++ b/library/CMakeLists.txt
@@ -22,6 +22,7 @@
     bignum_core.c
     bignum_mod.c
     bignum_mod_raw.c
+    block_cipher.c
     camellia.c
     ccm.c
     chacha20.c