diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6cc16c3..0f07ea4 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -56,9 +56,12 @@ jobs:
           targets: x86_64-pc-windows-gnu
       - uses: Swatinem/rust-cache@v2
       # `check` type-checks the cfg(windows) backend without needing a MinGW
-      # linker to actually link a binary.
-      - name: cargo check --target x86_64-pc-windows-gnu
-        run: cargo check --target x86_64-pc-windows-gnu
+      # linker to actually link a binary. `--all-targets` also type-checks the
+      # integration tests, so a `std::os::unix` (or other non-Windows) call in a
+      # test is caught here on the cheap Linux runner instead of failing the
+      # slower windows-msvc job.
+      - name: cargo check --target x86_64-pc-windows-gnu --all-targets
+        run: cargo check --target x86_64-pc-windows-gnu --all-targets
 
   windows:
     name: windows (MSVC test)
diff --git a/tests/daemon_lifecycle.rs b/tests/daemon_lifecycle.rs
index b7219df..f9bac1e 100644
--- a/tests/daemon_lifecycle.rs
+++ b/tests/daemon_lifecycle.rs
@@ -344,9 +344,14 @@ fn silent_client_does_not_wedge_the_accept_loop() {
     })
     .expect("daemon never answered initial Ping");
 
-    // A silent client: connect and send nothing, keep the handle alive.
+    // A silent client: connect and send nothing, keep the handle alive. We use
+    // the crate's own [`oxiwake::platform::connect`] rather than reaching for
+    // `std::os::unix::net::UnixStream` directly: `std::os::unix` does not exist
+    // on Windows, so the direct call broke the MSVC build. `platform::connect`
+    // is the cross-platform client connect (Unix socket on Linux, named pipe on
+    // Windows), so this invariant is now exercised on both platforms.
     let paths = Paths::resolve().unwrap();
-    let _silent = std::os::unix::net::UnixStream::connect(&paths.socket).unwrap();
+    let _silent = oxiwake::platform::connect(&paths).unwrap();
     std::thread::sleep(Duration::from_millis(200));
 
     // A real Ping must still succeed — the silent client is dropped after the