diff --git a/pkgs/by-name/hy/hyprland/package.nix b/pkgs/by-name/hy/hyprland/package.nix
index 8810cc91cff4..d21d7f572c96 100644
--- a/pkgs/by-name/hy/hyprland/package.nix
+++ b/pkgs/by-name/hy/hyprland/package.nix
@@ -103,11 +103,14 @@ customStdenv.mkDerivation (finalAttrs: {
 
   postPatch = ''
     # Fix hardcoded paths to /usr installation
-    sed -i "s#/usr#$out#" src/render/OpenGL.cpp
+    substituteInPlace src/render/OpenGL.cpp \
+      --replace-fail /usr $out
 
     # Remove extra @PREFIX@ to fix pkg-config paths
-    sed -i "s#@PREFIX@/##g" hyprland.pc.in
-    sed -i "s#@PREFIX@/##g" example/hyprland.desktop.in
+    substituteInPlace hyprland.pc.in \
+      --replace-fail  @PREFIX@ ""
+    substituteInPlace example/hyprland.desktop.in \
+      --replace-fail  @PREFIX@ ""
   '';
 
   # variables used by CMake, and shown in `hyprctl version`