diff --git a/pkgs/by-name/hu/hushboard/package.nix b/pkgs/by-name/hu/hushboard/package.nix
index 16fadc50b2eb..0dbcae8cdcd1 100644
--- a/pkgs/by-name/hu/hushboard/package.nix
+++ b/pkgs/by-name/hu/hushboard/package.nix
@@ -54,9 +54,9 @@ python3Packages.buildPythonApplication {
 
   postPatch = ''
     substituteInPlace hushboard/_pulsectl.py \
-      --replace "ctypes.util.find_library('libpulse') or 'libpulse.so.0'" "'${libpulseaudio}/lib/libpulse.so.0'"
+      --replace-fail "ctypes.util.find_library('libpulse') or 'libpulse.so.0'" "'${libpulseaudio}/lib/libpulse.so.0'"
     substituteInPlace snap/gui/hushboard.desktop \
-      --replace "\''${SNAP}/hushboard/icons/hushboard.svg" "hushboard"
+      --replace-fail "\''${SNAP}/hushboard/icons/hushboard.svg" "hushboard"
   '';
 
   postInstall = ''