diff --git a/doc/site/core/IO.markdown b/doc/site/core/ioe.markdown
similarity index 98%
rename from doc/site/core/IO.markdown
rename to doc/site/core/ioe.markdown
index 68bd0108..d4cad7bc 100644
--- a/doc/site/core/IO.markdown
+++ b/doc/site/core/ioe.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.