diff --git a/pkgs/os-specific/linux/rdma-core/default.nix b/pkgs/os-specific/linux/rdma-core/default.nix
index 22ce4a10f1c8..a7cf884a854b 100644
--- a/pkgs/os-specific/linux/rdma-core/default.nix
+++ b/pkgs/os-specific/linux/rdma-core/default.nix
@@ -1,5 +1,5 @@
 { stdenv, fetchFromGitHub, cmake, pkgconfig
-, ethtool, libnl, libudev, python, perl
+, ethtool, nettools, libnl, libudev, python, perl
 } :
 
 let
@@ -16,10 +16,13 @@ in stdenv.mkDerivation {
   };
 
   nativeBuildInputs = [ cmake pkgconfig ];
-  buildInputs = [ libnl ethtool libudev python perl ];
+  buildInputs = [ libnl ethtool nettools libudev python perl ];
 
-  postFixup = ''
-    substituteInPlace $out/bin/rxe_cfg --replace ethtool "${ethtool}/bin/ethtool"
+  postPatch = ''
+    substituteInPlace providers/rxe/rxe_cfg.in \
+      --replace '@CMAKE_INSTALL_FULL_SHAREDSTATEDIR@' '/run' \
+      --replace ethtool "${ethtool}/bin/ethtool" \
+      --replace ifconfig "${nettools}/bin/ifconfig"
   '';
 
   meta = with stdenv.lib; {