diff --git a/test/mjsunit/regress/regress-5178.js b/test/mjsunit/regress/regress-5178.js
index bc0dd118d0..cf10ae7187 100644
--- a/test/mjsunit/regress/regress-5178.js
+++ b/test/mjsunit/regress/regress-5178.js
@@ -5,3 +5,5 @@
 assertThrows(() => {
   try { throw {} } catch({a=b, b}) { a+b }
 }, ReferenceError);
+
+try { throw {a: 42} } catch({a, b=a}) { assertEquals(42, b) };