diff --git a/adsbus/Makefile b/adsbus/Makefile
index d8c3840..781104b 100644
--- a/adsbus/Makefile
+++ b/adsbus/Makefile
@@ -16,8 +16,8 @@ clean:
 %.o: %.c *.h
 	$(CC) -c $(CFLAGS) $< -o $@
 
-adsb.pb-c.c: adsb.proto
-	protoc-c --c_out=$(dir $<) $<
+adsb.pb-c.c: ../proto/adsb.proto
+	protoc-c --c_out=./ --proto_path=$(dir $<) $<
 
 adsbus: adsbus.o $(OBJ_NETWORK) $(OBJ_PROTOCOL) $(OBJ_UTIL) $(OBJ_PROTO)
 	$(CC) $(LDFLAGS) -o adsbus adsbus.o $(OBJ_NETWORK) $(OBJ_PROTOCOL) $(OBJ_UTIL) $(OBJ_PROTO) $(LIBS)
diff --git a/adsbus/adsb.proto b/proto/adsb.proto
similarity index 100%
rename from adsbus/adsb.proto
rename to proto/adsb.proto