diff --git a/js/src/jit-test/tests/promise/bug-1298776.js b/js/src/jit-test/tests/promise/bug-1298776.js
index 9ffa884dd960..313b47bc6490 100644
--- a/js/src/jit-test/tests/promise/bug-1298776.js
+++ b/js/src/jit-test/tests/promise/bug-1298776.js
@@ -1 +1,2 @@
-oomTest(Function(`new Promise(res=>res)`));
+if (typeof oomTest === 'function')
+    oomTest(Function(`new Promise(res=>res)`));