diff --git a/src/Makefile b/src/Makefile
index ebd5530..188251e 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -67,6 +67,11 @@ LDFLAGS_Pissb	= $(LDFLAGS) -lsndfile -lliquid
 	#$(CC) -o pifmrds/rds_wav pifmrds/rds_wav.o pifmrds/rds.o pifmrds/waveforms.o pifmrds/fm_mpx.o -lm -lsndfile
 	$(CXX) $(CXXFLAGS) -Wno-write-strings -o ../pifmrds pifmrds/rds.o pifmrds/waveforms.o pifmrds/pi_fm_rds.cpp pifmrds/fm_mpx.o pifmrds/control_pipe.o -lm -lsndfile -lrt -lpthread -L/opt/vc/lib -lrpitx
 
+../pifmmpx: pifmmpx/pi_fm_rds.cpp pifmmpx/fm_mpx.c
+	$(CC) $(CFLAGS) -c -o pifmmpx/control_pipe.o pifmmpx/control_pipe.c
+	$(CC) $(CFLAGS) -c -o pifmmpx/fm_mpx.o pifmmpx/fm_mpx.c
+	$(CXX) $(CXXFLAGS) -Wno-write-strings -o ../pifmrds pifmrds/pi_fm_rds.cpp pifmrds/fm_mpx.o pifmrds/control_pipe.o -lm -lsndfile -lrt -lpthread -L/opt/vc/lib -lrpitx
+
 ../rpitx: rpitxv1/rpitx.cpp 
 	$(CXX) $(CXXFLAGS) -Wno-write-strings -o ../rpitx rpitxv1/rpitx.cpp $(LDFLAGS)