     }
     msg.reply "Okay."
 
-  robot.hear /^remove var (\w+)\s*(!+)?$/, (msg) ->
+  robot.respond /^remove var (\w+)\s*(!+)?$/, (msg) ->
     varname = msg.match[1]
     is_forced = !!msg.match[2]
     if !robot.brain.data.variables[varname]

# Configuration:
#
# Commands:
#   None
#
# Author:
#   Gavin Mogan <gavin@kodekoan.com>

  # constructor
  robot.brain.data.variables = {}

  robot.respond /^create var (\w+)$/, (msg) ->
    varname = msg.match[1]
    if robot.brain.data.variables[varname]
      msg.reply "Sorry, Variable of '" + varname + "' already exists."
