diff --git a/pkgs/os-specific/linux/kernel/common-config.nix b/pkgs/os-specific/linux/kernel/common-config.nix
index 9bad2280a3a..c4ecf666fcd 100644
--- a/pkgs/os-specific/linux/kernel/common-config.nix
+++ b/pkgs/os-specific/linux/kernel/common-config.nix
@@ -196,6 +196,11 @@ let
       INET_UDP_DIAG     = module;
       INET_RAW_DIAG     = whenAtLeast "4.14" module;
       INET_DIAG_DESTROY = whenAtLeast "4.9" yes;
+
+      # enable multipath-tcp
+      MPTCP           = whenAtLeast "5.6" yes;
+      MPTCP_IPV6      = whenAtLeast "5.6" yes;
+      INET_MPTCP_DIAG = whenAtLeast "5.9" module;
     };
 
     wireless = {
diff --git a/pkgs/top-level/aliases.nix b/pkgs/top-level/aliases.nix
index 01c80ea3d80..78f0d5ae287 100644
--- a/pkgs/top-level/aliases.nix
+++ b/pkgs/top-level/aliases.nix
@@ -303,6 +303,7 @@ mapAliases ({
   libstdcxxHook = throw "libstdcxx hook has been removed because cc-wrapper is now directly aware of the c++ standard library intended to be used."; # 2020-06-22
   libqmatrixclient = throw "libqmatrixclient was renamed to libquotient"; # added 2020-04-09
   links = links2; # added 2016-01-31
+  linux_mptcp_5_9 = linux_5_9; # added 2020-01-07
   linux_rpi0 = linux_rpi1;
   linuxPackages_rpi0 = linuxPackages_rpi1;
 
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index fec582facc6..35b4882dad2 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -18544,13 +18544,6 @@ in
 
   linux_mptcp = linux_mptcp_95;
 
-  linux_mptcp_5_9 = linux_5_9.override {
-    structuredExtraConfig = with lib.kernel; {
-      MPTCP      = yes;
-      MPTCP_IPV6 = yes;
-    };
-  };
-
   linux_mptcp_95 = callPackage ../os-specific/linux/kernel/linux-mptcp-95.nix {
     kernelPatches = linux_4_19.kernelPatches;
   };