diff --git a/CMakeLists.txt b/CMakeLists.txt
index ad8e9b0..34cced1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -36,6 +36,7 @@ endif()
 target_sources(${PROJECT_NAME}
     PRIVATE
         src/serial.cc
+        ${serial_SRCS}
     PUBLIC
         include/serial/serial.h
 )