diff --git a/milkwm/CMakeLists.txt b/milkwm/CMakeLists.txt
index 50c370f..f92106d 100644
--- a/milkwm/CMakeLists.txt
+++ b/milkwm/CMakeLists.txt
@@ -5,6 +5,8 @@ mde_setup_project(milkwm ${CMAKE_INSTALL_BINDIR})
 mde_pkg_config_add(milkwm x11)
 mde_pkg_config_add(milkwm libconfig)
 
+mde_math_add(milkwm)
+
 target_link_libraries(
 	milkwm
 	PRIVATE
diff --git a/mpanel/startbutton/CMakeLists.txt b/mpanel/startbutton/CMakeLists.txt
index b5cb36e..01940e1 100644
--- a/mpanel/startbutton/CMakeLists.txt
+++ b/mpanel/startbutton/CMakeLists.txt
@@ -4,3 +4,5 @@ mde_setup_library(StartButtonModule ${CMAKE_INSTALL_LIBDIR}/mpanel)
 
 mde_pkg_config_add(StartButtonModule libconfig)
 
+mde_math_add(StartButtonModule)
+