diff --git a/standard-type-classes.md b/standard-type-classes.md
index 00ab012..cfe94f2 100644
--- a/standard-type-classes.md
+++ b/standard-type-classes.md
@@ -41,8 +41,8 @@ class Applicative
     given A
     defn pure: A -> F A
 
-    fn unit: F
-        λ => pure ()
+    fn unit: F #()
+        λ => pure #()
     end fn
 end class