diff --git a/pkgs/os-specific/linux/kernel/perf.nix b/pkgs/os-specific/linux/kernel/perf.nix
index ae27839c8cd3..cc335aec4c8f 100644
--- a/pkgs/os-specific/linux/kernel/perf.nix
+++ b/pkgs/os-specific/linux/kernel/perf.nix
@@ -56,6 +56,7 @@ stdenv.mkDerivation {
 
   postPatch = ''
     patchShebangs scripts/bpf_helpers_doc.py
+    patchShebangs scripts/bpf_doc.py
   '';
 
   doCheck = false; # requires "sparse"