diff --git a/library/CMakeLists.txt b/library/CMakeLists.txt
index aae1f50..704a4b0 100644
--- a/library/CMakeLists.txt
+++ b/library/CMakeLists.txt
@@ -16,6 +16,7 @@
      debug.c
      des.c
      dhm.c
+     ecp.c
      entropy.c
      entropy_poll.c
      error.c