diff --git a/app/views/pages/references/api/filters/standard_filters.liquid.haml b/app/views/pages/references/api/filters/standard_filters.liquid.haml
index aa43b86..148a9dc 100644
--- a/app/views/pages/references/api/filters/standard_filters.liquid.haml
+++ b/app/views/pages/references/api/filters/standard_filters.liquid.haml
@@ -49,7 +49,7 @@ position: 1
   ## Usage
 
       {% raw %}
-      {{ "testing" | upcase }}
+      {{ "testing" | capitalize }}
       Testing
       {% endraw %}
 
@@ -64,7 +64,7 @@ position: 1
   ## Usage
 
       {% raw %}
-      {{ 'Usage: foo "bar" <baz>' | upcase }}
+      {{ 'Usage: foo "bar" <baz>' | escape }}
       Usage: foo &quot;bar&quot; &lt;baz&gt;
       {% endraw %}