diff --git a/pkgs/by-name/qd/qdirstat/package.nix b/pkgs/by-name/qd/qdirstat/package.nix
index 04e6ae824f22..e5c6366a6be3 100644
--- a/pkgs/by-name/qd/qdirstat/package.nix
+++ b/pkgs/by-name/qd/qdirstat/package.nix
@@ -32,21 +32,14 @@ stdenv.mkDerivation rec {
 
   postPatch = ''
     substituteInPlace scripts/scripts.pro \
-      --replace /bin/true ${coreutils}/bin/true
-
-    for i in src/SysUtil.cpp src/FileSizeStatsWindow.cpp
-    do
-      substituteInPlace $i \
-        --replace /usr/bin/xdg-open ${xdg-utils}/bin/xdg-open
-    done
-    for i in src/Cleanup.cpp src/cleanup-config-page.ui
-    do
-      substituteInPlace $i \
-        --replace /bin/bash ${bash}/bin/bash \
-        --replace /bin/sh ${bash}/bin/sh
-    done
+      --replace-fail /bin/true ${coreutils}/bin/true
+    substituteInPlace src/SysUtil.cpp src/FileSizeStatsWindow.cpp \
+      --replace-fail /usr/bin/xdg-open ${xdg-utils}/bin/xdg-open
+    substituteInPlace src/Cleanup.cpp src/cleanup-config-page.ui \
+      --replace-fail /bin/bash ${bash}/bin/bash \
+      --replace-fail /bin/sh ${bash}/bin/sh
     substituteInPlace src/StdCleanup.cpp \
-      --replace /bin/bash ${bash}/bin/bash
+      --replace-fail /bin/bash ${bash}/bin/bash
   '';
 
   qmakeFlags = [ "INSTALL_PREFIX=${placeholder "out"}" ];