diff --git a/content/oop.md b/content/oop.md
index 4a09191..4274632 100644
--- a/content/oop.md
+++ b/content/oop.md
@@ -29,7 +29,7 @@ animals.add(Cat(name: "Mitten", age: 10))
 
 for a in animals:
   echo a.vocalize()
-  echo a.age_human_yrs()
+  echo a.ageHumanYrs()
 ```
 ``` console
 $ nimrod c -r oop.nim
diff --git a/content/procs.md b/content/procs.md
index c2300ef..6cfa3e0 100644
--- a/content/procs.md
+++ b/content/procs.md
@@ -75,7 +75,7 @@ let zero = ""
 proc `+`(a, b: string): string =
   a & b
 
-proc `*`[T, I](a: T, b: int): T =
+proc `*`[T](a: T, b: int): T =
   result = zero
   for i in 0..b:
     result = result + a