diff --git a/pkgs/os-specific/linux/v4l-utils/default.nix b/pkgs/os-specific/linux/v4l-utils/default.nix
index 6a46db0dbac..2c9b395949a 100644
--- a/pkgs/os-specific/linux/v4l-utils/default.nix
+++ b/pkgs/os-specific/linux/v4l-utils/default.nix
@@ -41,6 +41,7 @@ in stdenv.mkDerivation rec {
 
   postPatch = ''
     patchShebangs utils/cec-ctl/msg2ctl.pl
+    patchShebangs utils/libcecutil/cec-gen.pl
   '';
 
   meta = with stdenv.lib; {