diff --git a/src/map/atcommand.cpp b/src/map/atcommand.cpp
index 54d09c0838..7ca92673d5 100644
--- a/src/map/atcommand.cpp
+++ b/src/map/atcommand.cpp
@@ -8419,7 +8419,7 @@ ACMD_FUNC(accept)
 		return 0;
 	}
 
-	if( duel_check_player_limit( duel_get_duelid( sd->duel_invite ) ) )
+	if( !duel_check_player_limit( duel_get_duelid( sd->duel_invite ) ) )
 	{
 		clif_displaymessage(fd, msg_txt(sd,351)); // "Duel: Limit of players is reached."
 		return 0;