diff --git a/pkgs/development/libraries/libdisplay-info/default.nix b/pkgs/development/libraries/libdisplay-info/default.nix
index a83aa299b0bc..fa499a001464 100644
--- a/pkgs/development/libraries/libdisplay-info/default.nix
+++ b/pkgs/development/libraries/libdisplay-info/default.nix
@@ -25,10 +25,8 @@ stdenv.mkDerivation rec {
 
   buildInputs = [ hwdata ];
 
-  prePatch = ''
-    substituteInPlace meson.build \
-        --replace "find_program('tool/gen-search-table.py')" "find_program('python3')" \
-        --replace "gen_search_table," "gen_search_table, '$src/tool/gen-search-table.py',"
+  postPatch = ''
+    patchShebangs tool/gen-search-table.py
   '';
 
   meta = with lib; {