diff --git a/agent/snmpd.c b/agent/snmpd.c
index ae73eda..f01b890 100644
--- a/agent/snmpd.c
+++ b/agent/snmpd.c
@@ -289,6 +289,7 @@ usage(char *prog)
            "  -S d|i|0-7\t\tuse -Ls <facility> instead\n"
            "\n"
            );
+           exit(1);
 }
 
 static void
