diff --git a/Modules/AchievementSniffer.lua b/Modules/AchievementSniffer.lua
index 709832f..64cd06a 100644
--- a/Modules/AchievementSniffer.lua
+++ b/Modules/AchievementSniffer.lua
@@ -221,6 +221,8 @@ function shared.AchievementSniffer.Init()
 			if Heimdall_Data.config.achievementSniffer.debug then
 				print(string.format("[%s] Player %s has already been seen", ModuleName, name))
 			end
+			-- Save some memory
+			Heimdall_Achievements.players[name] = nil
 			should = false
 		end
 		if Heimdall_Data.config.achievementSniffer.rescan then