diff --git a/exercises/concept/valentines-day/.docs/introduction.md b/exercises/concept/valentines-day/.docs/introduction.md
index 58e43a267..ad5e83b3e 100644
--- a/exercises/concept/valentines-day/.docs/introduction.md
+++ b/exercises/concept/valentines-day/.docs/introduction.md
@@ -45,7 +45,7 @@ Custom type variants can be pattern matched on using case expressions.
 import gleam/int
 import gleam/float
 
-pub fn describe(number: Number) -> String {
+pub fn describe(flexible_number: Number) -> String {
   case flexible_number {
     SomeFloat(f) -> "Float: " <> float.to_string(f)
     SomeInt(i) -> "Int: " <> int.to_string(i)