diff --git a/doc/site/modularity.markdown b/doc/site/modularity.markdown
index ad54bde8..ba054fc9 100644
--- a/doc/site/modularity.markdown
+++ b/doc/site/modularity.markdown
@@ -45,7 +45,7 @@ if (thirsty) {
 If you need to import a variable under a different name, you can use 
 `import "..." for Name as OtherName`. This looks up the top-level variable
 `Name` in *that* module, but declares a variable called `OtherName` in *this* module
-with it's value.
+with its value.
 
 <pre class="snippet">
 import "liquids" for Water //Water is now taken