diff --git a/pkgs/tools/networking/pdsh/default.nix b/pkgs/tools/networking/pdsh/default.nix
index d920816c141..7e60e60bfa3 100644
--- a/pkgs/tools/networking/pdsh/default.nix
+++ b/pkgs/tools/networking/pdsh/default.nix
@@ -1,7 +1,7 @@
-{stdenv, fetchurl, perl, readline, ssh, pam}:
+{stdenv, fetchurl, perl, readline, rsh, ssh, pam}:
 
 stdenv.mkDerivation rec {
-  name = "pdsh-2.16";
+  name = "pdsh-2.18";
   meta = {
     homepage = "https://computing.llnl.gov/linux/pdsh.html";
     description = "A high-performance, parallel remote shell utility.";
@@ -9,9 +9,8 @@ stdenv.mkDerivation rec {
   };
   src = fetchurl {
     url = "mirror://sourceforge/pdsh/${name}.tar.bz2";
-    sha256 = "8891cd3b175d3075f7c71fa4ee2b077306117ada5dd8c0966caaa3b74eca3a3e";
+    sha256 = "8c94acb17b4af8a9f553db180b4d5745c9c98844a5dc070e2ce80590e8e8a539";
   };
-  patches = [ ./fix-missing-sys-types-h.patch ];
   buildInputs = [perl readline ssh pam];
   # Setting --with-machines=$out in configureFlags doesn't seem to work,
   # so I specify configurePhase instead.
@@ -19,6 +18,7 @@ stdenv.mkDerivation rec {
                  + " " + (if readline == null then "--without-readline" else "--with-readline")
                  + " " + (if ssh == null then "--without-ssh" else "--with-ssh")
                  + " " + (if pam == null then "--without-pam" else "--with-pam")
+                 + " " + (if rsh == null then "--without-rsh" else "--with-rsh")
                  + " --with-dshgroups"
                  + " --with-xcpu"
                  + " --without-genders"
diff --git a/pkgs/tools/networking/pdsh/fix-missing-sys-types-h.patch b/pkgs/tools/networking/pdsh/fix-missing-sys-types-h.patch
deleted file mode 100644
index 6077e4e755c..00000000000
--- a/pkgs/tools/networking/pdsh/fix-missing-sys-types-h.patch
+++ /dev/null
@@ -1,11 +0,0 @@
---- pdsh-2.16/src/common/hostlist.h	2008-01-29 18:35:48.000000000 +0100
-+++ pdsh-2.16-patched/src/common/hostlist.h	2008-07-07 21:14:12.000000000 +0200
-@@ -29,6 +29,8 @@
- #ifndef _HOSTLIST_H
- #define _HOSTLIST_H
- 
-+#include <sys/types.h>
-+
- /* Notes:
-  *
-  * If WITH_LSD_FATAL_ERROR_FUNC is defined, the linker will expect to
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 35fafbae2d1..0ed60aa0f2b 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -1086,6 +1086,7 @@ let
   pdsh = import ../tools/networking/pdsh {
     inherit fetchurl stdenv perl;
     readline = if getPkgConfig "pdsh" "readline" true then readline else null;
+    rsh = getPkgConfig "pdsh" "rsh" true;
     ssh = if getPkgConfig "pdsh" "ssh" true then openssh else null;
     pam = if getPkgConfig "pdsh" "pam" true then pam else null;
   };