diff --git a/artiq-fast/shell-dev.nix b/artiq-fast/shell-dev.nix
index 7fd0519..6ef516a 100644
--- a/artiq-fast/shell-dev.nix
+++ b/artiq-fast/shell-dev.nix
@@ -8,7 +8,7 @@ in
     buildInputs = [
       vivado
       pkgs.gnumake
-      (pkgs.python3.withPackages(ps: (with ps; [ jinja2 numpy paramiko ]) ++ (with artiqpkgs; [ migen microscope misoc jesd204b migen-axi artiq ])))
+      (pkgs.python3.withPackages(ps: (with ps; [ jinja2 jsonschema numpy paramiko ]) ++ (with artiqpkgs; [ migen microscope misoc jesd204b migen-axi artiq ])))
       artiqpkgs.cargo
       artiqpkgs.rustc
       artiqpkgs.binutils-or1k
diff --git a/artiq-full.nix b/artiq-full.nix
index 69d7b22..5f3e43d 100644
--- a/artiq-full.nix
+++ b/artiq-full.nix
@@ -26,7 +26,10 @@ let
 
     let
       artiq-fast = import ./fast { inherit pkgs; };
-      ddbDeps = pkgs.python3.withPackages (ps: [ ps.jsonschema ]);
+      ddbDeps = [
+        artiq-fast.artiq
+        (pkgs.python3.withPackages (ps: [ ps.jsonschema ]))
+      ];
 
       target = "kasli";
       variants = [
@@ -146,7 +149,7 @@ let
           } // (pkgs.lib.optionalAttrs ((builtins.fromJSON (builtins.readFile json)).base == "standalone") {
             "device-db-\''${target}-\''${variant}" = pkgs.stdenv.mkDerivation {
               name = "device-db-\''${target}-\''${variant}";
-              buildInputs = [ artiq-fast.artiq ddbDeps ];
+              buildInputs = ddbDeps;
               phases = [ "buildPhase" ];
               buildPhase = "
                 mkdir \$out
@@ -211,7 +214,7 @@ let
         (system: crates: pkgs.lib.attrsets.nameValuePair ("device-db-" + system)
         (pkgs.stdenv.mkDerivation {
           name = "device-db-\''${system}";
-          buildInputs = [ artiq-fast.artiq ddbDeps ];
+          buildInputs = ddbDeps;
           phases = [ "buildPhase" ];
           buildPhase = "
             mkdir \$out
diff --git a/artiq-full/artiq-board.nix b/artiq-full/artiq-board.nix
index 81c36e4..840f692 100644
--- a/artiq-full/artiq-board.nix
+++ b/artiq-full/artiq-board.nix
@@ -77,12 +77,8 @@ let
   name = "artiq-board-${target}-${variant}-${version}";
   installPath = builtins.unsafeDiscardStringContext "${pkgs.python3Packages.python.sitePackages}/artiq/board-support/${target}-${variant}";
   pythonEnv = pkgs.python3.withPackages (ps: with ps; [
-    jinja2 numpy artiqpkgs.migen artiqpkgs.microscope artiqpkgs.misoc artiqpkgs.jesd204b artiqpkgs.artiq
-  ] ++
-  (if target == "kasli"
-   then [ jsonschema ]
-   else []
-  ));
+    jinja2 jsonschema numpy artiqpkgs.migen artiqpkgs.microscope artiqpkgs.misoc artiqpkgs.jesd204b artiqpkgs.artiq
+  ];
 
   generatedSources =
     pkgs.stdenv.mkDerivation {