diff --git a/grepolis.user.js b/grepolis.user.js
index 67b442d..1c1063c 100644
--- a/grepolis.user.js
+++ b/grepolis.user.js
@@ -10,7 +10,7 @@
 //
 // @match			http://*.grepolis.com/game/*
 //
-// @version         1.0.39
+// @version         1.0.40
 // @updateURL		http://git.javil.eu/jan/userscripts/raw/master/grepolis.user.js
 // ==/UserScript==
 
@@ -25,7 +25,7 @@
 
 	    	// If there is a format string then... it must be a string
         	if (typeof arguments[0] === "string") {
-            	args[0] = "%o: " + arguments[0];
+            	args[0] = "%s: " + arguments[0];
             	args.splice(1, 0, timestamp);
             	this.logCopy.apply(this, args);
     		} else {