diff --git a/src/Makefile.am b/src/Makefile.am
index a11882b..332eefc 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -248,6 +248,7 @@ wmaker_SOURCES += \
 	backend/wayland/wl_layer_shell.c \
 	backend/wayland/wl_handlers.c \
 	backend/wayland/wl_icon.c \
+	backend/wayland/wl_kaboom.c \
 	backend/wayland/wl_virtual_pointer.c \
 	backend/wayland/wl_input_fwd.c
 endif