diff --git a/pkgs/development/libraries/zeromq/2.x.nix b/pkgs/development/libraries/zeromq/2.x.nix
index 06beb9254f95..67b1151dc849 100644
--- a/pkgs/development/libraries/zeromq/2.x.nix
+++ b/pkgs/development/libraries/zeromq/2.x.nix
@@ -11,6 +11,7 @@ stdenv.mkDerivation rec {
   buildInputs = [ libuuid ];
 
   meta = {
+    branch = "2";
     homepage = "http://www.zeromq.org";
     description = "The Intelligent Transport Layer";
   };
diff --git a/pkgs/development/libraries/zeromq/3.x.nix b/pkgs/development/libraries/zeromq/3.x.nix
index fbb3b5ad74f7..6ee49cb5082e 100644
--- a/pkgs/development/libraries/zeromq/3.x.nix
+++ b/pkgs/development/libraries/zeromq/3.x.nix
@@ -11,6 +11,7 @@ stdenv.mkDerivation rec {
   buildInputs = [ libuuid ];
 
   meta = {
+    branch = "3";
     homepage = "http://www.zeromq.org";
     description = "The Intelligent Transport Layer";
   };
diff --git a/pkgs/servers/monitoring/zabbix/2.0.nix b/pkgs/servers/monitoring/zabbix/2.0.nix
index c9976581a519..cc05730cee5f 100644
--- a/pkgs/servers/monitoring/zabbix/2.0.nix
+++ b/pkgs/servers/monitoring/zabbix/2.0.nix
@@ -6,6 +6,7 @@ assert enableJabber -> minmay != null;
 let
 
   version = "2.0.10";
+  branch = "2.0";
 
   src = fetchurl {
     url = "mirror://sourceforge/zabbix/zabbix-${version}.tar.gz";
@@ -61,6 +62,7 @@ in
       '';
 
     meta = {
+      inherit branch;
       description = "An enterprise-class open source distributed monitoring solution";
       homepage = http://www.zabbix.com/;
       license = "GPL";
@@ -77,6 +79,7 @@ in
     configureFlags = "--enable-agent";
 
     meta = {
+      inherit branch;
       description = "An enterprise-class open source distributed monitoring solution (client-side agent)";
       homepage = http://www.zabbix.com/;
       license = "GPL";
diff --git a/pkgs/servers/monitoring/zabbix/2.2.nix b/pkgs/servers/monitoring/zabbix/2.2.nix
index ca36684a8c2d..71d4a963d7ad 100644
--- a/pkgs/servers/monitoring/zabbix/2.2.nix
+++ b/pkgs/servers/monitoring/zabbix/2.2.nix
@@ -6,6 +6,7 @@ assert enableJabber -> minmay != null;
 let
 
   version = "2.2.1";
+  branch = "2.2";
 
   src = fetchurl {
     url = "mirror://sourceforge/zabbix/zabbix-${version}.tar.gz";
@@ -61,6 +62,7 @@ in
       '';
 
     meta = {
+      inherit branch;
       description = "An enterprise-class open source distributed monitoring solution";
       homepage = http://www.zabbix.com/;
       license = "GPL";
@@ -77,6 +79,7 @@ in
     configureFlags = "--enable-agent";
 
     meta = {
+      inherit branch;
       description = "An enterprise-class open source distributed monitoring solution (client-side agent)";
       homepage = http://www.zabbix.com/;
       license = "GPL";