diff --git a/makefile b/makefile
index 2bb1026..afa769f 100644
--- a/makefile
+++ b/makefile
@@ -13,7 +13,7 @@ test_engine: test_engine.o engine.o transport.o wav_io.o dispatcher.o carla.o
 test_tui: test_tui.o engine.o transport.o wav_io.o dispatcher.o carla.o
 	$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)
 
-test_gui: test_gui.o gui.o engine.o transport.o lib/microui.o wav_io.o dispatcher.o
+test_gui: test_gui.o gui.o engine.o transport.o lib/microui.o wav_io.o dispatcher.o carla.o
 	$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)
 
 test_cli: test_cli.o engine.o cli.o transport.o wav_io.o dispatcher.o