diff --git a/tests/test_luau.rs b/tests/test_luau.rs
index 5238c4c6e..f2976a686 100644
--- a/tests/test_luau.rs
+++ b/tests/test_luau.rs
@@ -508,6 +508,8 @@ END {
         .arg("file:testlookup.luau")
         .arg("data.csv");
 
+    wrk.assert_success(&mut *&mut cmd);
+
     let got: Vec<Vec<String>> = wrk.read_stdout(&mut cmd);
     let expected = vec![
         svec!["letter", "Amount", "Running Total"],
@@ -599,6 +601,8 @@ END {
         .arg("file:testlookup.luau")
         .arg("data.csv");
 
+    wrk.assert_success(&mut *&mut cmd);
+
     let got: Vec<Vec<String>> = wrk.read_stdout(&mut cmd);
     let expected = vec![
         svec!["letter", "Amount", "Running Total"],