diff --git a/nixos/modules/services/computing/slurm/slurm.nix b/nixos/modules/services/computing/slurm/slurm.nix
index c70d999ca96d..050872e933fb 100644
--- a/nixos/modules/services/computing/slurm/slurm.nix
+++ b/nixos/modules/services/computing/slurm/slurm.nix
@@ -355,6 +355,7 @@ in
         ExecStart = "${wrappedSlurm}/bin/slurmd";
         PIDFile = "/run/slurmd.pid";
         ExecReload = "${pkgs.coreutils}/bin/kill -HUP $MAINPID";
+        LimitMEMLOCK = "infinity";
       };
 
       preStart = ''
diff --git a/pkgs/servers/computing/slurm/default.nix b/pkgs/servers/computing/slurm/default.nix
index 637ac0607db1..18ef3bf3fa55 100644
--- a/pkgs/servers/computing/slurm/default.nix
+++ b/pkgs/servers/computing/slurm/default.nix
@@ -1,7 +1,7 @@
 { stdenv, fetchFromGitHub, pkgconfig, libtool, curl
 , python, munge, perl, pam, openssl, zlib
 , ncurses, libmysqlclient, gtk2, lua, hwloc, numactl
-, readline, freeipmi, libssh2, xorg, lz4
+, readline, freeipmi, libssh2, xorg, lz4, rdma-core
 # enable internal X11 support via libssh2
 , enableX11 ? true
 }:
@@ -35,7 +35,7 @@ stdenv.mkDerivation rec {
   nativeBuildInputs = [ pkgconfig libtool ];
   buildInputs = [
     curl python munge perl pam openssl zlib
-      libmysqlclient ncurses gtk2 lz4
+      libmysqlclient ncurses gtk2 lz4 rdma-core
       lua hwloc numactl readline freeipmi
   ] ++ stdenv.lib.optionals enableX11 [ libssh2 xorg.xauth ];
 
@@ -46,6 +46,7 @@ stdenv.mkDerivation rec {
       "--with-munge=${munge}"
       "--with-ssl=${openssl.dev}"
       "--with-zlib=${zlib}"
+      "--with-ofed=${rdma-core}"
       "--sysconfdir=/etc/slurm"
     ] ++ (optional (gtk2 == null)  "--disable-gtktest")
       ++ (optional enableX11 "--with-libssh2=${libssh2.dev}")