diff --git a/pkgs/applications/audio/orca-c/default.nix b/pkgs/applications/audio/orca-c/default.nix
index c010af202a2..088e7f97e4e 100644
--- a/pkgs/applications/audio/orca-c/default.nix
+++ b/pkgs/applications/audio/orca-c/default.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation {
 
   buildInputs = [ ncurses portmidi ];
 
-  patchPhase = ''
+  postPatch = ''
     patchShebangs tool
   '';