diff --git a/tiiview.tcl b/tiiview.tcl
index 1480fab..67b6a17 100755
--- a/tiiview.tcl
+++ b/tiiview.tcl
@@ -58,7 +58,10 @@ proc formatmessage {msgdata msgid globalwidth} {
   set subj [lindex $msglines 6]
   set msgbody [tiiflow [lrange $msglines 8 end] $globalwidth]
   set tz ""
-  set renderedts [clock format $timestamp -format {%Y-%m-%d %H:%M:%S} -timezone $tz]
+  set renderedts ""
+  catch { # because some servers don't provide timestamps
+    set renderedts [clock format $timestamp -format {%Y-%m-%d %H:%M:%S} -timezone $tz]
+  }
   catch { # because pipe can be broken anytime
     puts "\[$renderedts\] ii://$msgid"
     puts "$echoarea - $msgfrom ($msgfromaddr) to $msgto"