diff --git a/pkgs/development/libraries/ffmpeg/generic.nix b/pkgs/development/libraries/ffmpeg/generic.nix
index 5d9b41848cae..01995e9237b1 100644
--- a/pkgs/development/libraries/ffmpeg/generic.nix
+++ b/pkgs/development/libraries/ffmpeg/generic.nix
@@ -71,7 +71,7 @@ stdenv.mkDerivation rec {
   configureFlags = filter (v: v != null) ([
       "--arch=${stdenv.hostPlatform.parsed.cpu.name}"
       "--target_os=${stdenv.hostPlatform.parsed.kernel.name}"
-      "--pkg-config=${pkg-config.targetPrefix}pkg-config"
+      "--pkg-config=${buildPackages.pkg-config.targetPrefix}pkg-config"
     # License
       "--enable-gpl"
       "--enable-version3"