diff --git a/command-manager.go b/command-manager.go
index aecc7e2..c4b4bd7 100644
--- a/command-manager.go
+++ b/command-manager.go
@@ -100,7 +100,7 @@ func (c *CommandManager) OnMessage(session *discordgo.Session, m *discordgo.Mess
 			User:         m.Author,
 			Guild:        guild,
 			Member:       m.Member,
-			Invoked:      nil,
+			Invoked:      "",
 			ErrorChannel: c.ErrorChannel,
 		}
 		c.ErrorChannel <- CommandError{