diff --git a/check_mysql_slave.py b/check_mysql_slave.py
index 2944f28..031dd9d 100755
--- a/check_mysql_slave.py
+++ b/check_mysql_slave.py
@@ -90,13 +90,13 @@ def main(args):
                     exit_msg.append('Replication is delayed!')
                 elif replication_delay >= crit_deviation_max:
                     exit_code = nagios.STATE_CRIT
-                    exit_msg.append('Replication is ahead???')
+                    exit_msg.append('Replication delay too short!')
                 elif replication_delay <= warn_deviation_min:
                     exit_code = nagios.STATE_WARN
                     exit_msg.append('Replication is delayed!')
                 elif replication_delay >= warn_deviation_max:
                     exit_code = nagios.STATE_WARN
-                    exit_msg.append('Replication is ahead???')
+                    exit_msg.append('Replication delay too short!')
 
         if exit_code == nagios.STATE_OK:
             exit_msg.append('Slave is healthy! Slave SQL: running. Slave IO: running.')