diff --git a/doc/site/core/IO.markdown b/doc/site/core/IO.markdown
index ddb010f6..68bd0108 100644
--- a/doc/site/core/IO.markdown
+++ b/doc/site/core/IO.markdown
@@ -1,4 +1,4 @@
-^title IO Class
+^title io Class
 ^category core
 
 The IO class can be used to read and write to and from the console.
@@ -6,7 +6,10 @@ The IO class can be used to read and write to and from the console.
 ## Static Methods
 
 ### IO.print(obj[, obj2, obj3...])
-Prints any number of things to the console and then prints a new line character. If you don't pass it a string, it will be converted to a string for you. When passed multiple things, Wren outputs one after another.
+
+Prints any number of things to the console and then prints a newline
+character. If you don't pass it a string, it will be converted to a string for
+you. When passed multiple things, Wren outputs one after another.
 
 
 	> IO.print("I like bananas")
@@ -16,15 +19,22 @@ Prints any number of things to the console and then prints a new line character.
 	> 
 
 ### IO.write(obj)
-Prints a single thing to the console, but does not print a new line character afterwards. If you pass it something that isn't a string, it will convert it to a string.
+
+Prints a single thing to the console, but does not print a newline character
+afterwards. If you pass it something that isn't a string, it will convert it to
+a string.
 
 	> IO.write(4+5)
 	9>
 
-In the above example, the result of `4+5` is printed, and then the prompt is printed on the same line because no new line character was printed afterwards.
+In the above example, the result of `4+5` is printed, and then the prompt is
+printed on the same line because no newline character was printed afterwards.
 
 ### IO.read(prompt)
-Reads in and returns a line of text from the console. Takes a single string to be used as a prompt. Pass an empty string for no prompt. Note that the returned line of text includes the new line character at the end.
+
+Reads in and returns a line of text from the console. Takes a single string to
+be used as a prompt. Pass an empty string for no prompt. Note that the returned
+line of text includes the newline character at the end.
 
 	> var name = IO.read("Enter your name: ")
 	Enter your name: John
diff --git a/doc/site/core/index.markdown b/doc/site/core/index.markdown
index 99dd4f49..7a94d84c 100644
--- a/doc/site/core/index.markdown
+++ b/doc/site/core/index.markdown
@@ -20,6 +20,6 @@ All Wren source files automatically have access to the following classes:
 * [Range](range.html)
 * [Sequence](sequence.html)
 * [String](string.html)
-* [IO](IO.html)
+* [IO](io.html)
 
 [embedding]: ../embedding-api.html
diff --git a/doc/site/template-core.html b/doc/site/template-core.html
index 54e51f73..1d849f78 100644
--- a/doc/site/template-core.html
+++ b/doc/site/template-core.html
@@ -38,7 +38,7 @@
         <li><a href="range.html">Range</a></li>
         <li><a href="sequence.html">Sequence</a></li>
         <li><a href="string.html">String</a></li>
-        <li><a href="IO.html">IO</a></li>
+        <li><a href="io.html">IO</a></li>
       </ul>
     </section>
   </nav>