diff --git a/pkgs/by-name/em/em100/package.nix b/pkgs/by-name/em/em100/package.nix
index d8721a7b82b1..a57e322e338e 100644
--- a/pkgs/by-name/em/em100/package.nix
+++ b/pkgs/by-name/em/em100/package.nix
@@ -27,11 +27,13 @@ stdenv.mkDerivation rec {
 
   buildFlags = [
     "em100"
+    "makedpfw"
   ];
 
   installPhase = ''
     runHook preInstall
     install -Dm755 em100 $out/bin/em100
+    install -Dm755 makedpfw $out/bin/makedpfw
     install -Dm644 60-dediprog-em100pro.rules $out/lib/udev/rules.d/dediprog_em100.rules
     runHook postInstall
   '';