diff --git a/previous-exams/2021-midterm-solution.md b/previous-exams/2021-midterm-solution.md
index d491a910e5ded532b43196afbd5a75c2fc26c802..6f0bc211f487b4c31fd08fe76cb8ea20d95614c6 100644
--- a/previous-exams/2021-midterm-solution.md
+++ b/previous-exams/2021-midterm-solution.md
@@ -156,7 +156,7 @@ for eval <- Seq(eval1, eval2) do
 ### Exercise 3.1
 
 - Type parameter `A` in `map`
-- `def map[B >: A](f: B => C): Transform[B, C]`
+- `def map[C](f: B => C): Transform[B, C]`
 
 ### Exercise 3.2