diff --git a/src/main/java/org/olat/course/config/CourseConfig.java b/src/main/java/org/olat/course/config/CourseConfig.java
index 8b1320c72ccc50e8c2f76c0f735f5be221514af2..4bc808e08a8a5680613051a30199264c1a7c1699 100644
--- a/src/main/java/org/olat/course/config/CourseConfig.java
+++ b/src/main/java/org/olat/course/config/CourseConfig.java
@@ -150,7 +150,7 @@ public class CourseConfig implements Serializable, Cloneable {
 	public void initDefaults() {
 		// version 1
 		// version 2
-		configuration.put(KEY_CHAT_ENABLED, Boolean.TRUE);
+		configuration.put(KEY_CHAT_ENABLED, Boolean.FALSE);
 		// version 3
 		configuration.put(KEY_CSS_FILEREF, VALUE_EMPTY_CSS_FILEREF);
 		// version 4