diff --git a/Makefile.plugins.mk b/Makefile.plugins.mk
index c848d9d7..d419de76 100644
--- a/Makefile.plugins.mk
+++ b/Makefile.plugins.mk
@@ -400,7 +400,7 @@ $(BUILD_DIR)/DistrhoUIMain_%.cpp.o: $(DPF_PATH)/distrho/DistrhoUIMain.cpp $(EXTR
 $(BUILD_DIR)/DistrhoUI_macOS_%.mm.o: $(DPF_PATH)/distrho/DistrhoUI_macOS.mm $(EXTRA_DEPENDENCIES)
 	-@mkdir -p $(BUILD_DIR)
 	@echo "Compiling DistrhoUI_macOS.mm ($*)"
-	$(SILENT)$(CXX) $< $(BUILD_CXX_FLAGS) -DDISTRHO_PLUGIN_TARGET_$* -ObjC++ -c -o $@
+	$(SILENT)$(CXX) $< $(BUILD_CXX_FLAGS) -ObjC++ -c -o $@
 
 $(BUILD_DIR)/DistrhoPluginMain_JACK.cpp.o: $(DPF_PATH)/distrho/DistrhoPluginMain.cpp $(EXTRA_DEPENDENCIES)
 	-@mkdir -p $(BUILD_DIR)