diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1417f6a79..a25a1238d 100644
--- a/CMakeLists.txt	
+++ b/CMakeLists.txt
@@ -6,13 +6,13 @@ cmake_minimum_required(VERSION 3.5...3.20)
 
 project(boost_system VERSION "${BOOST_SUPERPROJECT_VERSION}" LANGUAGES CXX)
 
-add_library(boost_system INTERFACE)
+add_library(boost_system "src/error_code.cpp")
 add_library(Boost::system ALIAS boost_system)
 
-target_include_directories(boost_system INTERFACE include)
+target_include_directories(boost_system PUBLIC include)
 
 target_link_libraries(boost_system
-  INTERFACE
+  PUBLIC
     Boost::assert
     Boost::config
     Boost::throw_exception