diff --git a/proxy/src/main/java/net/md_5/bungee/UserConnection.java b/proxy/src/main/java/net/md_5/bungee/UserConnection.java
index 6f0a3297e..d882bad63 100644
--- a/proxy/src/main/java/net/md_5/bungee/UserConnection.java
+++ b/proxy/src/main/java/net/md_5/bungee/UserConnection.java
@@ -443,6 +443,6 @@ public final class UserConnection implements ProxiedPlayer
     @Override
     public Locale getLocale()
     {
-        return ( locale == null && settings != null ) ? locale = Locale.forLanguageTag( settings.getLocale() ) : locale;
+        return ( locale == null && settings != null ) ? locale = Locale.forLanguageTag( settings.getLocale().replaceAll( "_", "-" ) ) : locale;
     }
 }