diff --git a/CMakeLists.txt b/CMakeLists.txt
index eea1beb..f601486 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -12,9 +12,6 @@ include(GNUInstallDirs)
 find_package(Threads REQUIRED)
 find_package(libelfin REQUIRED)
 
-file(GLOB_RECURSE sources libcoz/*.cpp)
-file(GLOB_RECURSE headers include/*.h)
-
 install(PROGRAMS coz DESTINATION bin)
 install(FILES LICENSE.md DESTINATION licenses)
 
diff --git a/libcoz/CMakeLists.txt b/libcoz/CMakeLists.txt
index 2cff026..09fa793 100644
--- a/libcoz/CMakeLists.txt
+++ b/libcoz/CMakeLists.txt
@@ -1,3 +1,12 @@
+set(sources
+    inspect.cpp
+    libcoz.cpp
+    perf.cpp
+    profiler.cpp
+    real.cpp)
+set(headers
+    ${PROJECT_SOURCE_DIR}/include/coz.h)
+
 add_library(coz MODULE ${sources})
 set_target_properties(coz PROPERTIES PUBLIC_HEADER "${headers}")
 if(CONAN_PACKAGE_VERSION)