diff --git a/pkgs/build-support/make-darwin-bundle/default.nix b/pkgs/build-support/make-darwin-bundle/default.nix
index b8f58882fff3..52dd54b0b2c4 100644
--- a/pkgs/build-support/make-darwin-bundle/default.nix
+++ b/pkgs/build-support/make-darwin-bundle/default.nix
@@ -12,14 +12,14 @@
 
 writeShellScript "make-darwin-bundle-${name}" (''
   function makeDarwinBundlePhase() {
-    mkdir -p "$out/Applications/${name}.app/Contents/MacOS"
-    mkdir -p "$out/Applications/${name}.app/Contents/Resources"
+    mkdir -p "''${!outputBin}/Applications/${name}.app/Contents/MacOS"
+    mkdir -p "''${!outputBin}/Applications/${name}.app/Contents/Resources"
 
     if [ -n "${icon}" ]; then
-      ln -s "${icon}" "$out/Applications/${name}.app/Contents/Resources"
+      ln -s "${icon}" "''${!outputBin}/Applications/${name}.app/Contents/Resources"
     fi
 
-    ${writeDarwinBundle}/bin/write-darwin-bundle "$out" "${name}" "${exec}"
+    ${writeDarwinBundle}/bin/write-darwin-bundle "''${!outputBin}" "${name}" "${exec}"
   }
 
   preDistPhases+=" makeDarwinBundlePhase"
diff --git a/pkgs/build-support/setup-hooks/desktop-to-darwin-bundle.sh b/pkgs/build-support/setup-hooks/desktop-to-darwin-bundle.sh
index 72c1b973666e..74c8f6d0b333 100644
--- a/pkgs/build-support/setup-hooks/desktop-to-darwin-bundle.sh
+++ b/pkgs/build-support/setup-hooks/desktop-to-darwin-bundle.sh
@@ -200,12 +200,12 @@ convertDesktopFile() {
     local -r iconName=$(getDesktopParam "${file}" "^Icon")
     local -r squircle=$(getDesktopParam "${file}" "X-macOS-SquircleIcon")
 
-    mkdir -p "$out/Applications/${name}.app/Contents/MacOS"
-    mkdir -p "$out/Applications/${name}.app/Contents/Resources"
+    mkdir -p "${!outputBin}/Applications/${name}.app/Contents/MacOS"
+    mkdir -p "${!outputBin}/Applications/${name}.app/Contents/Resources"
 
-    convertIconTheme "$out/Applications/${name}.app/Contents/Resources" "$sharePath" "$iconName"
+    convertIconTheme "${!outputBin}/Applications/${name}.app/Contents/Resources" "$sharePath" "$iconName"
 
-    write-darwin-bundle "$out" "$name" "$exec" "$iconName" "$squircle"
+    write-darwin-bundle "${!outputBin}" "$name" "$exec" "$iconName" "$squircle"
 }
 
 convertDesktopFiles() {