diff --git a/shields/Makefile b/shields/Makefile
index 98c7faa..5b272cb 100644
--- a/shields/Makefile
+++ b/shields/Makefile
@@ -9,7 +9,7 @@ get:
 	wget https://github.com/badges/shields/archive/$(VERSION).tar.gz
 
 decompress:
-	tar $(VERSION).tar.bz2
+	tar -xf $(VERSION).tar.bz2
 
 build:
 	docker buildx build --platform linux/amd64,linux/arm64 --push \