diff --git a/doc/site/modules/core/list.markdown b/doc/site/modules/core/list.markdown
index b02fddfd..b5d17ac2 100644
--- a/doc/site/modules/core/list.markdown
+++ b/doc/site/modules/core/list.markdown
@@ -12,7 +12,7 @@ An indexable contiguous collection of elements. More details [here][lists].
 
 Creates a new list with `size` elements, all set to `element`.
 
-It is a runtime error if `size` is not a nonnegative integer.
+It is a runtime error if `size` is not a non-negative integer.
 
 ### List.**new**()
 
diff --git a/doc/site/modules/core/num.markdown b/doc/site/modules/core/num.markdown
index 9f880216..d8eea004 100644
--- a/doc/site/modules/core/num.markdown
+++ b/doc/site/modules/core/num.markdown
@@ -17,7 +17,7 @@ The value of ∞.
 
 One value representing a NaN.
 
-Provides a default sane NaN number suitable for the vm internal values.
+Provides a default NaN number suitable for the vm internal values.
 
 ### Num.**pi**