diff --git a/curriculum/challenges/english/07-scientific-computing-with-python/learn-how-to-work-with-numbers-and-strings-by-implementing-the-luhn-algorithm/6565a536ba1f9f25bd30e88b.md b/curriculum/challenges/english/07-scientific-computing-with-python/learn-how-to-work-with-numbers-and-strings-by-implementing-the-luhn-algorithm/6565a536ba1f9f25bd30e88b.md
index 183a1375778..9a0bbb179ce 100644
--- a/curriculum/challenges/english/07-scientific-computing-with-python/learn-how-to-work-with-numbers-and-strings-by-implementing-the-luhn-algorithm/6565a536ba1f9f25bd30e88b.md
+++ b/curriculum/challenges/english/07-scientific-computing-with-python/learn-how-to-work-with-numbers-and-strings-by-implementing-the-luhn-algorithm/6565a536ba1f9f25bd30e88b.md
@@ -24,8 +24,7 @@ You should have `def main():` in your code.
     test: () => {
         assert(runPython(`
         import inspect
-        a = __locals.get("main")
-        inspect.isfunction(a)
+        inspect.isfunction(main)
         `))
     }
 })