diff --git a/library/CMakeLists.txt b/library/CMakeLists.txt
index 77aac20..d948ca0 100644
--- a/library/CMakeLists.txt
+++ b/library/CMakeLists.txt
@@ -46,6 +46,7 @@
      pk_wrap.c
      pkparse.c
      pkwrite.c
+     platform.c
      ripemd160.c
      rsa.c
      sha1.c