diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 8bc70293..b5f41176 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -116,13 +116,10 @@ jobs:
             artifact_suffix: ""
             name_suffix: "(linux)"
 
-          #
-          # TODO: Re-enable once tests are passing.
-          #
-          # - host: "macos-latest"
-          #   variant: "macos"
-          #   artifact_suffix: "-macos"
-          #   name_suffix: "(macOS) -- ** not yet expected to pass **"
+          - host: "macos-latest"
+            variant: "macos"
+            artifact_suffix: "-macos"
+            name_suffix: "(macOS)"
 
     name: "Test ${{ matrix.name_suffix }}"
     runs-on: ${{ matrix.host }}
diff --git a/brush-core/src/sys/unix/signal.rs b/brush-core/src/sys/unix/signal.rs
index 3b6d4d36..33768b21 100644
--- a/brush-core/src/sys/unix/signal.rs
+++ b/brush-core/src/sys/unix/signal.rs
@@ -35,10 +35,10 @@ pub(crate) fn kill_process(pid: u32) -> Result<(), error::Error> {
     Ok(())
 }
 
-const SIGTSTP: std::os::raw::c_int = 20;
-
 pub(crate) fn tstp_signal_listener() -> Result<tokio::signal::unix::Signal, error::Error> {
-    let signal = tokio::signal::unix::signal(tokio::signal::unix::SignalKind::from_raw(SIGTSTP))?;
+    let signal = tokio::signal::unix::signal(tokio::signal::unix::SignalKind::from_raw(
+        nix::libc::SIGTSTP,
+    ))?;
     Ok(signal)
 }