Index: /check_munin
===================================================================
--- /check_munin (revision 9)
+++ /check_munin (revision 10)
@@ -45,4 +45,7 @@
 MODULE = options.module
 DEBUG = options.debug
+
+if HOST == None or MODULE == None:
+	parser.error("options -H and -M are required.")
 
 def compare(val, thresh):