diff --git a/pkgs/servers/monitoring/nagios-plugins/check_uptime/default.nix b/pkgs/servers/monitoring/nagios-plugins/check_uptime/default.nix
index 7f6913794d02..dc707f2f3725 100644
--- a/pkgs/servers/monitoring/nagios-plugins/check_uptime/default.nix
+++ b/pkgs/servers/monitoring/nagios-plugins/check_uptime/default.nix
@@ -7,7 +7,7 @@
 
 stdenv.mkDerivation {
   pname = "check-uptime";
-  version = "unstable-2016-11-12";
+  version = "0-unstable-2016-11-12";
 
   src = fetchFromGitHub {
     owner = "madrisan";