diff --git a/railties/guides/source/active_support_overview.textile b/railties/guides/source/active_support_overview.textile
index 7adaafceff..be787b6af2 100644
--- a/railties/guides/source/active_support_overview.textile
+++ b/railties/guides/source/active_support_overview.textile
@@ -257,7 +257,7 @@ account.to_query('company[name]')
 
 so its output is ready to be used in a query string.
 
-Arrays return the result of applying +to_query+ to each element with <tt>_key_[]</tt> as key, and join the result with "/":
+Arrays return the result of applying +to_query+ to each element with <tt>_key_[]</tt> as key, and join the result with "&":
 
 <ruby>
 [3.4, -45.6].to_query('sample')