diff --git a/src/main/java/eu/siacs/conversations/ui/ConversationActivity.java b/src/main/java/eu/siacs/conversations/ui/ConversationActivity.java
index 7fac95c57a93bdd8108e4e280034b6fc73a8bb97..4ba6c7738388d1b8b46721ca7dc50b442c51b34b 100644
--- a/src/main/java/eu/siacs/conversations/ui/ConversationActivity.java
+++ b/src/main/java/eu/siacs/conversations/ui/ConversationActivity.java
@@ -261,7 +261,7 @@ public class ConversationActivity extends XmppActivity
 	}
 
 	public void sendReadMarkerIfNecessary(final Conversation conversation) {
-		if (!mActivityPaused && !conversation.isRead()) {
+		if (!mActivityPaused && conversation != null && !conversation.isRead()) {
 			xmppConnectionService.sendReadMarker(conversation);
 		}
 	}
@@ -761,6 +761,9 @@ public class ConversationActivity extends XmppActivity
 		if (this.xmppConnectionServiceBound) {
 			this.xmppConnectionService.getNotificationService().setIsInForeground(true);
 		}
+		if (!isConversationsOverviewVisable() || !isConversationsOverviewHideable()) {
+			sendReadMarkerIfNecessary(getSelectedConversation());
+		}
 	}
 
 	@Override