diff --git a/src/main/java/org/qortal/controller/Controller.java b/src/main/java/org/qortal/controller/Controller.java
index f2d91804..805e86c5 100644
--- a/src/main/java/org/qortal/controller/Controller.java
+++ b/src/main/java/org/qortal/controller/Controller.java
@@ -103,6 +103,7 @@ public class Controller extends Thread {
 
 	static {
 		// This must go before any calls to LogManager/Logger
+		System.setProperty("log4j2.formatMsgNoLookups", "true");
 		System.setProperty("java.util.logging.manager", "org.apache.logging.log4j.jul.LogManager");
 	}