diff --git a/crates/engine/src/tests.rs b/crates/engine/src/tests.rs
index c3d55ed63e..166ab92e61 100644
--- a/crates/engine/src/tests.rs
+++ b/crates/engine/src/tests.rs
@@ -311,7 +311,9 @@ fn hostile_params_never_panic() {
         json!({"value": -1e308, "rows": 1e9}),
     ];
     for spec in reg.all() {
-        if spec.id.starts_with("file.") || spec.id == "insert.picture" || spec.id == "insert.textFromFile" {
+        // These reach outside the session: files, and Read Aloud starts the system speech
+        // synthesiser (`say` on macOS), which would read the sample document aloud on every run.
+        if spec.id.starts_with("file.") || spec.id == "insert.picture" || spec.id == "insert.textFromFile" || spec.id == "review.readAloud" {
             continue;
         }
         for j in &junk {