diff --git a/pkgs/os-specific/linux/bpftools/default.nix b/pkgs/os-specific/linux/bpftools/default.nix
index 3e20efa9f01..f2ca8d87471 100644
--- a/pkgs/os-specific/linux/bpftools/default.nix
+++ b/pkgs/os-specific/linux/bpftools/default.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation {
   buildInputs = [ libopcodes libbfd libelf zlib readline ];
 
   preConfigure = ''
-    patchShebangs scripts/bpf_helpers_doc.py
+    patchShebangs scripts/bpf_doc.py
 
     cd tools/bpf
     substituteInPlace ./bpftool/Makefile \
diff --git a/pkgs/os-specific/linux/kernel/perf.nix b/pkgs/os-specific/linux/kernel/perf.nix
index b28e1659083..55ed30bc724 100644
--- a/pkgs/os-specific/linux/kernel/perf.nix
+++ b/pkgs/os-specific/linux/kernel/perf.nix
@@ -55,7 +55,7 @@ stdenv.mkDerivation {
   ];
 
   postPatch = ''
-    patchShebangs scripts/bpf_helpers_doc.py
+    patchShebangs scripts/bpf*_doc.py
   '';
 
   doCheck = false; # requires "sparse"