diff --git a/guides/source/caching_with_rails.md b/guides/source/caching_with_rails.md
index cf6b5d08e62ba92b9ec029122648b763bc6ef9c5..61b991df61d8723be7ca3704c90fd9889fbdf709 100644
--- a/guides/source/caching_with_rails.md
+++ b/guides/source/caching_with_rails.md
@@ -107,7 +107,7 @@ This method generates a cache key that depends on all products and can be used i
 <% end %>
 ```
 
-If you want to cache a fragment under certain condition you can use `cache_if` or `cache_unless`
+If you want to cache a fragment under certain conditions, you can use `cache_if` or `cache_unless`
 
 ```erb
 <% cache_if (condition, cache_key_for_products) do %>