diff --git a/src/main/java/net/knarcraft/minecraftserverlauncher/server/Server.java b/src/main/java/net/knarcraft/minecraftserverlauncher/server/Server.java
index dabbf09..5956dc6 100644
--- a/src/main/java/net/knarcraft/minecraftserverlauncher/server/Server.java
+++ b/src/main/java/net/knarcraft/minecraftserverlauncher/server/Server.java
@@ -529,11 +529,11 @@ public class Server {
     private String getPlayer(String text, boolean joined) {
         String playerName;
 
-        String loginPattern1 = " ([A-Z0-9a-z]+)\\[/[0-9]+\\.[0-9]+\\.[0-9]+\\.[0-9]+:[0-9]+] logged in";
-        String loginPattern2 = "UUID of player ([A-Z0-9a-z]+) is";
+        String loginPattern1 = " ([A-Z0-9a-z_]+)\\[/[0-9]+\\.[0-9]+\\.[0-9]+\\.[0-9]+:[0-9]+] logged in";
+        String loginPattern2 = "UUID of player ([A-Z0-9a-z_]+) is";
 
-        String logoutPattern1 = "INFO]: ([A-Z0-9a-z]+) lost connection";
-        String logoutPattern2 = " ([A-Z0-9a-z]+) left the game";
+        String logoutPattern1 = "INFO]: ([A-Z0-9a-z_]+) lost connection";
+        String logoutPattern2 = " ([A-Z0-9a-z_]+) left the game";
 
         if (joined) {
             playerName = getFirstRegexCaptureGroup(loginPattern1, text);