diff --git a/slides/Makefile b/slides/Makefile
index 1128eb1e8f2a2b273eda8d225bf30c9731a2063d..ccd24841d22240640f393331325964aac3a90894 100644
--- a/slides/Makefile
+++ b/slides/Makefile
@@ -33,6 +33,7 @@ docker_clean: docker-compose.yml
 	docker-compose run slides make clean -k || true
 
 puppeteer:
+	@echo "Setting chromium to $(CHROMIUM) for puppeteer"
 	@echo -e "{\n\"executablePath\":" \"$(CHROMIUM)\" ",\n\"args\": [\"--no-sandbox\"]\n}" > .puppeteer.json
 
 index: