diff --git a/pkgs/applications/audio/picard/default.nix b/pkgs/applications/audio/picard/default.nix
index 200e457c568..785c334e152 100644
--- a/pkgs/applications/audio/picard/default.nix
+++ b/pkgs/applications/audio/picard/default.nix
@@ -40,11 +40,6 @@ in pythonPackages.buildPythonApplication rec {
     dateutil
   ];
 
-  prePatch = ''
-    # Pesky unicode punctuation.
-    substituteInPlace setup.cfg --replace "‘" "'"
-  '';
-
   # In order to spare double wrapping, we use:
   preFixup = ''
     makeWrapperArgs+=("''${qtWrapperArgs[@]}")