diff --git a/.github/workflows/CI-win.yml b/.github/workflows/CI-win.yml
index a96e250a..149f9ca0 100644
--- a/.github/workflows/CI-win.yml
+++ b/.github/workflows/CI-win.yml
@@ -26,6 +26,7 @@ jobs:
           - {toolchain: Visual Studio 17 2022, arch: Win32, server: 2022}
           - {toolchain: Visual Studio 17 2022, arch: x64, server: 2022}
           - {toolchain: Visual Studio 17 2022, arch: x64, server: 2022, config: ASAN}
+          - {toolchain: Visual Studio 17 2022, arch: x64, server: 2022, config: UBSAN}
           - {toolchain: Visual Studio 17 2022, arch: arm64, server: 2022}
     steps:
       - uses: actions/checkout@v2
@@ -36,7 +37,8 @@ jobs:
         run:
           cmake -S . -B build -DBUILD_TESTING=ON
             -G "${{ matrix.config.toolchain }}" -A ${{ matrix.config.arch }}
-            ${{ matrix.config.config == 'ASAN' && '-DASAN=on -DCMAKE_MSVC_RUNTIME_LIBRARY=MultiThreaded' || '' }}
+            ${{ matrix.config.config == 'ASAN' && '-DASAN=on -DCMAKE_MSVC_RUNTIME_LIBRARY=MultiThreaded' ||
+                matrix.config.config == 'UBSAN' && '-DUBSAN=on' || '' }}
 
           cmake --build build --config RelWithDebInfo
 
diff --git a/.github/workflows/sanitizer.yml b/.github/workflows/sanitizer.yml
index 78052d0c..4fca161d 100644
--- a/.github/workflows/sanitizer.yml
+++ b/.github/workflows/sanitizer.yml
@@ -95,3 +95,29 @@ jobs:
       - name: UBSAN Test
         run: |
           ./build-ubsan/uv_run_tests_a
+
+  sanitizers-windows:
+    runs-on: windows-2022
+    steps:
+      - uses: actions/checkout@v2
+      - name: Setup
+        run: |
+          choco install ninja
+
+      # Note: clang shipped with VS2022 has an issue where the UBSAN runtime doesn't link.
+      - name: Install LLVM and Clang
+        uses: KyleMayes/install-llvm-action@v1
+        with:
+          version: "17"
+
+      - name: Envinfo
+        run: npx envinfo
+
+      - name: UBSAN Build
+        run: |
+          mkdir build-ubsan
+          cmake -B build-ubsan -G Ninja -DBUILD_TESTING=ON -DUBSAN=ON -DCMAKE_BUILD_TYPE=Debug -DCMAKE_C_COMPILER=clang
+          cmake --build build-ubsan
+      - name: UBSAN Test
+        run: |
+          ./build-ubsan/uv_run_tests_a
diff --git a/test/test-tcp-close-reset.c b/test/test-tcp-close-reset.c
index c9ac4d48..74941789 100644
--- a/test/test-tcp-close-reset.c
+++ b/test/test-tcp-close-reset.c
@@ -81,7 +81,7 @@ static void do_close(uv_tcp_t* handle) {
     ASSERT_OK(r);
 #ifdef _WIN32
     ASSERT_PTR_NE(fd, INVALID_FD);
-    ASSERT_OK(shutdown(fd, SD_BOTH));
+    ASSERT_OK(shutdown((SOCKET)fd, SD_BOTH));
 #else
     ASSERT_NE(fd, INVALID_FD);
     ASSERT_OK(shutdown(fd, SHUT_RDWR));