diff --git a/src/main/java/fr/xephi/authme/datasource/FlatFile.java b/src/main/java/fr/xephi/authme/datasource/FlatFile.java
index 2023cc45c..13cdfaf09 100644
--- a/src/main/java/fr/xephi/authme/datasource/FlatFile.java
+++ b/src/main/java/fr/xephi/authme/datasource/FlatFile.java
@@ -13,6 +13,7 @@ import java.util.List;
 import fr.xephi.authme.AuthMe;
 import fr.xephi.authme.ConsoleLogger;
 import fr.xephi.authme.cache.auth.PlayerAuth;
+import fr.xephi.authme.cache.auth.PlayerCache;
 import fr.xephi.authme.settings.PlayersLogs;
 import fr.xephi.authme.settings.Settings;
 
@@ -648,17 +649,17 @@ public class FlatFile implements DataSource {
 
     @Override
     public boolean isLogged(String user) {
-        return PlayersLogs.getInstance().players.contains(user.toLowerCase());
+        return PlayerCache.getInstance().isAuthenticated(user);
     }
 
     @Override
     public void setLogged(String user) {
-        PlayersLogs.getInstance().addPlayer(user.toLowerCase());
+        PlayersLogs.getInstance().savePlayerLogs();
     }
 
     @Override
     public void setUnlogged(String user) {
-        PlayersLogs.getInstance().removePlayer(user.toLowerCase());
+        PlayersLogs.getInstance().savePlayerLogs();
     }
 
     @Override