diff --git a/pkgs/os-specific/linux/rdma-core/default.nix b/pkgs/os-specific/linux/rdma-core/default.nix
index 878f563631e9..710a74d67d8c 100644
--- a/pkgs/os-specific/linux/rdma-core/default.nix
+++ b/pkgs/os-specific/linux/rdma-core/default.nix
@@ -14,8 +14,9 @@ stdenv.mkDerivation rec {
     sha256 = "1z9yrkqdknzidg4g1g5rqrs7i0325nmzzw0nf2ki1nzlfwqxy9qv";
   };
 
-  nativeBuildInputs = [ cmake pkg-config pandoc docutils ];
-  buildInputs = [ libnl ethtool iproute2 udev python3 perl ];
+  strictDeps = true;
+  nativeBuildInputs = [ cmake pkg-config pandoc docutils python3 ];
+  buildInputs = [ libnl ethtool iproute2 udev perl ];
 
   cmakeFlags = [
     "-DCMAKE_INSTALL_RUNDIR=/run"