diff --git a/.github/workflows/cmake.yml b/.github/workflows/cmake.yml
index ce8d374610..c7c7792a6c 100644
--- a/.github/workflows/cmake.yml
+++ b/.github/workflows/cmake.yml
@@ -83,6 +83,11 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
+      - name: Setup ninja build toolchain
+        uses: aminya/setup-cpp@v1
+        with:
+          ninja: true
+
       - name: Configure
         working-directory: asio
         run: cmake --preset=ci-sanitize
diff --git a/asio/CMakePresets.json b/asio/CMakePresets.json
index 678c2178f8..0e68c964d2 100644
--- a/asio/CMakePresets.json
+++ b/asio/CMakePresets.json
@@ -133,7 +133,6 @@
         "ci-std"
       ],
       "generator": "Ninja",
-      "architecture": "x64",
       "hidden": true
     },
     {