diff --git a/src/java/davmail/caldav/CaldavConnection.java b/src/java/davmail/caldav/CaldavConnection.java
index 79a507b0..ad087c57 100644
--- a/src/java/davmail/caldav/CaldavConnection.java
+++ b/src/java/davmail/caldav/CaldavConnection.java
@@ -1312,7 +1312,7 @@ public class CaldavConnection extends AbstractConnection {
         }
 
         protected boolean isBrokenHrefEncoding() {
-            return isUserAgent("DAVKit/3") || isUserAgent("eM Client/");
+            return isUserAgent("DAVKit/3") || isUserAgent("eM Client/")|| isUserAgent("Lightning/1.0b2");
         }
 
         protected boolean isLightning() {