diff --git a/pkgs/tools/system/testdisk/default.nix b/pkgs/tools/system/testdisk/default.nix
index 8bc290d6a673..9fe76c59052f 100644
--- a/pkgs/tools/system/testdisk/default.nix
+++ b/pkgs/tools/system/testdisk/default.nix
@@ -26,6 +26,11 @@ assert enableQt -> qwt != null;
     sha256 = "1zlh44w67py416hkvw6nrfmjickc2d43v51vcli5p374d5sw84ql";
   };
 
+  postPatch = ''
+    substituteInPlace linux/qphotorec.desktop \
+      --replace "/usr" "$out"
+  '';
+
   enableParallelBuilding = true;
 
   buildInputs = [