Don't display if statement in terminal

Makefile

@@ -7,13 +7,13 @@ COMPRESSLEVEL="-o7"
 build:
 	gnome-extensions pack --force --podir=po --extra-source=LICENSE.txt --extra-source=docs/CHANGELOG.md --extra-source=icons/ --extra-source=lib/
 check:
-	if [[ ! -f "$(UUID).shell-extension.zip" ]]; then \
+	@if [[ ! -f "$(UUID).shell-extension.zip" ]]; then \
 	  echo -e "WARNING! Extension zip couldn't be found"; exit 1; \
 	elif [[ "$$(stat -c %s $(UUID).shell-extension.zip)" -gt 4096000 ]]; then \
 	  echo -e "\nWARNING! The extension is too big to be uploaded to the extensions website, keep it smaller than 4096 KB"; exit 1; \
 	fi
 release:
-	if [[ "$(VERSION)" != "" ]]; then \
+	@if [[ "$(VERSION)" != "" ]]; then \
 	  sed -i "s|  \"version\":.*|  \"version\": $(VERSION)|g" metadata.json; \
 	fi
 	#Call other targets required to make a release