diff --git a/pkgs/by-name/rk/rkbin/package.nix b/pkgs/by-name/rk/rkbin/package.nix
index f13113238467..b4481753bee0 100644
--- a/pkgs/by-name/rk/rkbin/package.nix
+++ b/pkgs/by-name/rk/rkbin/package.nix
@@ -25,6 +25,7 @@ stdenv.mkDerivation {
   passthru = {
     BL31_RK3568 = "${rkbin}/bin/rk35/rk3568_bl31_v1.44.elf";
     BL31_RK3588 = "${rkbin}/bin/rk35/rk3588_bl31_v1.47.elf";
+    TPL_RK3566 = "${rkbin}/bin/rk35/rk3566_ddr_1056MHz_v1.23.bin";
     TPL_RK3568 = "${rkbin}/bin/rk35/rk3568_ddr_1056MHz_v1.23.bin";
     TPL_RK3588 = "${rkbin}/bin/rk35/rk3588_ddr_lp4_2112MHz_lp5_2400MHz_v1.18.bin";
   };