diff --git a/pkgs/misc/arm-trusted-firmware/default.nix b/pkgs/misc/arm-trusted-firmware/default.nix
index 06a1fe677a6b..a5ab7ba83daa 100644
--- a/pkgs/misc/arm-trusted-firmware/default.nix
+++ b/pkgs/misc/arm-trusted-firmware/default.nix
@@ -53,6 +53,7 @@ let
 
     makeFlags = [
       "HOSTCC=$(CC_FOR_BUILD)"
+      "M0_CROSS_COMPILE=${pkgsCross.arm-embedded.stdenv.cc.targetPrefix}"
       "CROSS_COMPILE=${stdenv.cc.targetPrefix}"
       # binutils 2.39 regression
       # `warning: /build/source/build/rk3399/release/bl31/bl31.elf has a LOAD segment with RWX permissions`