diff --git a/Makefile b/Makefile
index f7e698403..15967e850 100644
--- a/Makefile
+++ b/Makefile
@@ -16,7 +16,7 @@ $(MODULES): *.js
 	$(BROWSERIFY) $(FLAGS) $(MODULE_DIR)/$@/$@.js -s $@ -o $(OUTPUT_DIR)/$@.bundle.js
 
 clean:
-	@rm $(OUTPUT_DIR)/*.bundle.js
+	@rm -f $(OUTPUT_DIR)/*.bundle.js
 
 deploy:
 	@mkdir -p $(DEPLOY_DIR) && cp $(OUTPUT_DIR)/*.bundle.js $(DEPLOY_DIR)
diff --git a/debian/rules b/debian/rules
index 2ffa63a21..0cf3556e5 100755
--- a/debian/rules
+++ b/debian/rules
@@ -12,6 +12,9 @@
 %:
 	dh $@
 
+# we skip making Makefile exists for updating browserify modules when developing
+override_dh_auto_build:
+
 override_dh_install:
 	dh_installdirs
 	dh_install -X/config.js