diff --git a/src/main/java/org/ultramine/server/data/ServerDataLoader.java b/src/main/java/org/ultramine/server/data/ServerDataLoader.java
index f60ae50..9ba6d80 100644
--- a/src/main/java/org/ultramine/server/data/ServerDataLoader.java
+++ b/src/main/java/org/ultramine/server/data/ServerDataLoader.java
@@ -230,7 +230,7 @@
 		return dataExtinfos;
 	}
 	
-	private class LoadedDataStruct
+	private static class LoadedDataStruct
 	{
 		private final NBTTagCompound nbt;
 		private final PlayerData data;