diff --git a/src/chatlist.rs b/src/chatlist.rs
index 901e0b35b..018aff4ab 100644
--- a/src/chatlist.rs
+++ b/src/chatlist.rs
@@ -291,7 +291,7 @@ impl<'a> Chatlist<'a> {
 
         if (*chat).id == DC_CHAT_ID_ARCHIVED_LINK as u32 {
             (*ret).text2 = dc_strdup(0 as *const libc::c_char)
-        } else if lastmsg.is_null() || (*lastmsg).from_id == DC_CONTACT_ID_SELF as u32 {
+        } else if lastmsg.is_null() || (*lastmsg).from_id == DC_CONTACT_ID_UNDEFINED as u32 {
             (*ret).text2 = self.context.stock_str(StockMessage::NoMessages).strdup();
         } else {
             dc_lot_fill(ret, lastmsg, chat, lastcontact.as_ref(), self.context);
diff --git a/src/constants.rs b/src/constants.rs
index e055dc73d..a5180de98 100644
--- a/src/constants.rs
+++ b/src/constants.rs
@@ -89,6 +89,7 @@ pub const DC_MAX_GET_TEXT_LEN: usize = 30000;
 /// approx. max. length returned by dc_get_msg_info()
 pub const DC_MAX_GET_INFO_LEN: usize = 100000;
 
+pub const DC_CONTACT_ID_UNDEFINED: usize = 0;
 pub const DC_CONTACT_ID_SELF: usize = 1;
 pub const DC_CONTACT_ID_DEVICE: usize = 2;
 pub const DC_CONTACT_ID_LAST_SPECIAL: usize = 9;