diff --git a/js/src/builtin/TestingFunctions.cpp b/js/src/builtin/TestingFunctions.cpp
index 81343061e5b4..51d752656eb0 100644
--- a/js/src/builtin/TestingFunctions.cpp
+++ b/js/src/builtin/TestingFunctions.cpp
@@ -2166,6 +2166,12 @@ bool RunIterativeFailureTest(JSContext* cx,
   JS_SetGCZeal(cx, 0, JS_DEFAULT_ZEAL_FREQ);
 #  endif
 
+  // Delazify the function here if necessary so we don't end up testing that.
+  if (params.testFunction->isInterpreted() &&
+      !JSFunction::getOrCreateScript(cx, params.testFunction)) {
+    return false;
+  }
+
   size_t compartmentCount = CountCompartments(cx);
 
   RootedValue exception(cx);
diff --git a/js/src/jit-test/tests/debug/job-queue-04.js b/js/src/jit-test/tests/debug/job-queue-04.js
index 38c698c1ff03..76cf241e8da2 100644
--- a/js/src/jit-test/tests/debug/job-queue-04.js
+++ b/js/src/jit-test/tests/debug/job-queue-04.js
@@ -21,4 +21,4 @@ dbg.onNewScript = script => {};
 // the correct condition).
 oomTest(() => {
     g.eval("(function() {})");
-});
+}, {expectExceptionOnFailure: false});