diff --git a/nix/artiq-dev.nix b/nix/artiq-dev.nix
index ad6ada554..38ef2dc9c 100644
--- a/nix/artiq-dev.nix
+++ b/nix/artiq-dev.nix
@@ -16,7 +16,7 @@ in
         xorg.libXext
         xorg.libXtst
         xorg.libXi
-        (python3.withPackages(ps: with ps; [ jinja2 numpy artiqpkgs.migen artiqpkgs.microscope artiqpkgs.misoc artiqpkgs.artiq ]))
+        (python3.withPackages(ps: with ps; [ jinja2 numpy artiqpkgs.migen artiqpkgs.microscope artiqpkgs.misoc artiqpkgs.jesd204b artiqpkgs.artiq ]))
       ] ++
       (with artiqpkgs; [
         rustc
diff --git a/nix/default.nix b/nix/default.nix
index 66c626540..90063b48d 100644
--- a/nix/default.nix
+++ b/nix/default.nix
@@ -9,7 +9,7 @@ let
   llvm-src = callPackage ./fetch-llvm-clang.nix {};
 in rec {
   inherit (rust) cargo rustc;
-  inherit (callPackage ./pkgs/python3Packages.nix {}) migen microscope misoc;
+  inherit (callPackage ./pkgs/python3Packages.nix {}) migen microscope misoc jesd204b;
   binutils-or1k = callPackage ./pkgs/binutils-or1k.nix {};
   llvm-or1k = callPackage ./pkgs/llvm-or1k.nix { inherit llvm-src; };
   llvmlite = callPackage ./pkgs/llvmlite.nix { inherit llvm-or1k; };
diff --git a/nix/pkgs/python3Packages.nix b/nix/pkgs/python3Packages.nix
index b34b0a9a1..f69f38887 100644
--- a/nix/pkgs/python3Packages.nix
+++ b/nix/pkgs/python3Packages.nix
@@ -94,4 +94,25 @@ rec {
       platforms   = platforms.unix;
     };
   };
+  jesd204b = python3Packages.buildPythonPackage rec {
+    version = "git-02cffc";
+    pname = "jesd204b";
+    name = "${pname}-${version}";
+
+    src = fetchFromGitHub {
+      owner = "m-labs";
+      repo = "jesd204b";
+      rev = "03d3280690727b12b6522cbd294138e66dd157c9";
+      sha256 = "1hpx4y8ynhsmwsq4ry748q6bkh8jvv2hy8b7hifxjmlh174y8rb0";
+    };
+
+    propagatedBuildInputs = with python3Packages; [ migen misoc ];
+
+    meta = with stdenv.lib; {
+      description = "JESD204B core for Migen/MiSoC";
+      homepage    = "https://m-labs.hk/migen";
+      license     = licenses.bsd2;
+      platforms   = platforms.unix;
+    };
+  };
 }