diff --git a/fhem/contrib/70_Pushover.pm b/fhem/contrib/70_Pushover.pm
index d4aeccfa4..3c94d1e7d 100644
--- a/fhem/contrib/70_Pushover.pm
+++ b/fhem/contrib/70_Pushover.pm
@@ -42,6 +42,7 @@ sub Pushover_Initialize($$)
   my ($hash) = @_;
   $hash->{DefFn}    = "Pushover_Define";
   $hash->{SetFn}    = "Pushover_Set";
+  $hash->{AttrList} = "timestamp:0,1";
 }
 
 sub Pushover_Define($$)
@@ -189,6 +190,13 @@ sub Pushover_Set_Message
       $body = $body . "&" . "expire=" . $expire;
     }
     
+    my $timestamp = AttrVal($hash->{NAME}, "timestamp", 0);
+    
+    if (1 == $timestamp)
+    {
+      $body = $body . "&" . "timestamp=" . time();
+    }
+    
     return Pushover_HTTP_Call($hash, $body);
   }
   else