diff --git a/emulator/Makefile b/emulator/Makefile
index 0beab044..37ff5a10 100644
--- a/emulator/Makefile
+++ b/emulator/Makefile
@@ -19,10 +19,10 @@ CHISEL_ARGS := $(MODEL) --noIoDebug --backend c --targetDir emulator/generated-s
 CHISEL_ARGS_DEBUG := $(CHISEL_ARGS)-debug --debug --vcd --ioDebug
 
 generated-src/$(MODEL).cpp: $(base_dir)/rocket/$(src_path)/*.scala $(base_dir)/hwacha/$(src_path)/*.scala $(base_dir)/uncore/$(src_path)/*.scala $(base_dir)/$(src_path)/*.scala
-	cd $(base_dir) && $(SBT) "elaborate $(CHISEL_ARGS)"
+	cd $(base_dir) && $(SBT) "project referencechip" "elaborate $(CHISEL_ARGS)"
 
 generated-src-debug/$(MODEL).cpp: $(base_dir)/rocket/$(src_path)/*.scala $(base_dir)/hwacha/$(src_path)/*.scala $(base_dir)/uncore/$(src_path)/*.scala $(base_dir)/$(src_path)/*.scala
-	cd $(base_dir) && $(SBT) "elaborate $(CHISEL_ARGS_DEBUG)"
+	cd $(base_dir) && $(SBT) "project referencechip" "elaborate $(CHISEL_ARGS_DEBUG)"
 
 $(MODEL).o: %.o: generated-src/%.cpp
 	$(CXX) $(CXXFLAGS) -Igenerated-src -c -o $@ $<