diff --git a/pkgs/by-name/mo/mochi/package.nix b/pkgs/by-name/mo/mochi/package.nix
index 81d56f9eb8ae..c513e7211733 100644
--- a/pkgs/by-name/mo/mochi/package.nix
+++ b/pkgs/by-name/mo/mochi/package.nix
@@ -41,12 +41,8 @@ let
     inherit pname version meta;
 
     src = fetchurl {
-      url = "https://download.mochi.cards/releases/Mochi-${version}${lib.optionalString stdenv.hostPlatform.isAarch64 "-arm64"}.dmg";
-      hash =
-        if stdenv.hostPlatform.isAarch64 then
-          "sha256-2NADaVzkibWjxBymeF1McGEQH6xHaqDMBg080kCI0F8="
-        else
-          "sha256-XM4vQVQ9QtvqyDu2Wx/8/Z+8H2DetfCufJYrX/1JHFw=";
+      url = "https://download.mochi.cards/releases/Mochi-${version}-arm64.dmg";
+      hash = "sha256-2NADaVzkibWjxBymeF1McGEQH6xHaqDMBg080kCI0F8=";
     };
 
     sourceRoot = ".";
diff --git a/pkgs/by-name/mo/mochi/update.sh b/pkgs/by-name/mo/mochi/update.sh
index cc6e20044d54..64c69ee0f4a9 100755
--- a/pkgs/by-name/mo/mochi/update.sh
+++ b/pkgs/by-name/mo/mochi/update.sh
@@ -17,10 +17,8 @@ fi
 # Update version and hash for x86_64-linux (AppImage)
 update-source-version mochi "$latestVersion" --system=x86_64-linux
 
-# Update hashes for darwin systems
-for system in x86_64-darwin aarch64-darwin; do
-    url=$(nix-instantiate --eval --json -E "with import ./. { system = \"$system\"; }; mochi.src.url" | tr -d '"')
-    hash=$(nix-prefetch-url "$url")
-    sriHash=$(nix --extra-experimental-features nix-command hash convert --hash-algo sha256 --to sri "$hash")
-    update-source-version mochi "$latestVersion" "$sriHash" --system="$system" --ignore-same-version
-done
+# Update hash for aarch64-darwin
+url=$(nix-instantiate --eval --json -E "with import ./. { system = \"aarch64-darwin\"; }; mochi.src.url" | tr -d '"')
+hash=$(nix-prefetch-url "$url")
+sriHash=$(nix --extra-experimental-features nix-command hash convert --hash-algo sha256 --to sri "$hash")
+update-source-version mochi "$latestVersion" "$sriHash" --system=aarch64-darwin  --ignore-same-version