diff --git a/Makefile b/Makefile
index 23e075e..e0c8ae5 100644
--- a/Makefile
+++ b/Makefile
@@ -5,9 +5,15 @@ SOURCE_VERSION := 1.0
 build:
 	mvn compile
 
+jar:
+	mvn package
+
 test:
 	mvn test
 
+sign:
+	mvn verify
+
 publish: tag
 	mvn clean deploy