diff --git a/pkgs/development/mobile/xcodeenv/build-app.nix b/pkgs/development/mobile/xcodeenv/build-app.nix
index b88f806d5866..720cf061f9a3 100644
--- a/pkgs/development/mobile/xcodeenv/build-app.nix
+++ b/pkgs/development/mobile/xcodeenv/build-app.nix
@@ -105,7 +105,7 @@ stdenv.mkDerivation ({
${codeSignIdentity}
provisioningProfiles
- ${stdenv.lib.toLower bundleId}
+ ${bundleId}
$PROVISIONING_PROFILE
signingStyle