diff --git a/source/api/actions/calendar_event_add.ts b/source/api/actions/calendar_event_add.ts
index 434d062..df4c00e 100644
--- a/source/api/actions/calendar_event_add.ts
+++ b/source/api/actions/calendar_event_add.ts
@@ -42,6 +42,10 @@ namespace _zeitbild.api
 							"type": "string",
 							"nullable": true,
 						},
+						"link": {
+							"type": "string",
+							"nullable": true,
+						},
 						"description": {
 							"type": "string",
 							"nullable": true,
diff --git a/source/api/actions/calendar_event_change.ts b/source/api/actions/calendar_event_change.ts
index 4529021..42ec2d3 100644
--- a/source/api/actions/calendar_event_change.ts
+++ b/source/api/actions/calendar_event_change.ts
@@ -42,6 +42,10 @@ namespace _zeitbild.api
 							"type": "string",
 							"nullable": true,
 						},
+						"link": {
+							"type": "string",
+							"nullable": true,
+						},
 						"description": {
 							"type": "string",
 							"nullable": true,
diff --git a/source/api/actions/calendar_event_get.ts b/source/api/actions/calendar_event_get.ts
index 0cfbe94..34427a7 100644
--- a/source/api/actions/calendar_event_get.ts
+++ b/source/api/actions/calendar_event_get.ts
@@ -42,6 +42,10 @@ namespace _zeitbild.api
 							"type": "string",
 							"nullable": true,
 						},
+						"link": {
+							"type": "string",
+							"nullable": true,
+						},
 						"description": {
 							"type": "string",
 							"nullable": true,
diff --git a/source/api/actions/events.ts b/source/api/actions/events.ts
index 5e9ec64..49130b6 100644
--- a/source/api/actions/events.ts
+++ b/source/api/actions/events.ts
@@ -101,6 +101,10 @@ namespace _zeitbild.api
 										"type": "string",
 										"nullable": true,
 									},
+									"link": {
+										"type": "string",
+										"nullable": true,
+									},
 									"description": {
 										"type": "string",
 										"nullable": true,
diff --git a/source/database.ts b/source/database.ts
index 020d70d..057d925 100644
--- a/source/database.ts
+++ b/source/database.ts
@@ -5,7 +5,7 @@ namespace _zeitbild.database
 	/**
 	 */
 	const _compatible_revisions : Array<string> = [
-		"r2",
+		"r3",
 	];
 	
 		
diff --git a/source/repositories/resource.ts b/source/repositories/resource.ts
index 7b7ffe8..7a1b871 100644
--- a/source/repositories/resource.ts
+++ b/source/repositories/resource.ts
@@ -226,6 +226,7 @@ namespace _zeitbild.repository.resource
 				encode_datetime(stuff.event.end)
 			),
 			"location": stuff.event.location,
+			"link": stuff.event.link,
 			"description": stuff.event.description,
 		}
 	}
@@ -280,6 +281,7 @@ namespace _zeitbild.repository.resource
 					decode_datetime(row["end"])
 				),
 				"location": row["location"],
+				"link": row["link"],
 				"description": row["description"],
 			}
 		};
diff --git a/source/services/calendar.ts b/source/services/calendar.ts
index b292755..d661e13 100644
--- a/source/services/calendar.ts
+++ b/source/services/calendar.ts
@@ -382,6 +382,13 @@ namespace _zeitbild.service.calendar
 											:
 											null
 										),
+										"link": (
+											(vevent.url !== undefined)
+											?
+											vevent.url
+											:
+											null
+										),
 										"description": (
 											(vevent.description !== undefined)
 											?
diff --git a/source/types.ts b/source/types.ts
index 91baee5..f827584 100644
--- a/source/types.ts
+++ b/source/types.ts
@@ -46,6 +46,11 @@ namespace _zeitbild
 			|
 			string
 		);
+		link : (
+			null
+			|
+			string
+		);
 		description : (
 			null
 			|