diff --git a/pkgs/by-name/li/libaom/package.nix b/pkgs/by-name/li/libaom/package.nix
index 1c1a321f2506..d21c177d3f28 100644
--- a/pkgs/by-name/li/libaom/package.nix
+++ b/pkgs/by-name/li/libaom/package.nix
@@ -77,7 +77,7 @@ stdenv.mkDerivation rec {
       "-DCONFIG_TUNE_VMAF=1"
     ]
     ++ lib.optionals (isCross && !stdenv.hostPlatform.isx86) [
-      "-DCMAKE_ASM_COMPILER=${stdenv.cc.targetPrefix}as"
+      "-DCMAKE_ASM_COMPILER=${lib.getBin stdenv.cc}/bin/${stdenv.cc.targetPrefix}cc"
     ]
     ++ lib.optionals stdenv.hostPlatform.isAarch32 [
       # armv7l-hf-multiplatform does not support NEON