diff --git a/src/Pretzel.Logic/Templating/Jekyll/LiquidEngine.cs b/src/Pretzel.Logic/Templating/Jekyll/LiquidEngine.cs
index 70ef5963f..7016bd6c8 100644
--- a/src/Pretzel.Logic/Templating/Jekyll/LiquidEngine.cs
+++ b/src/Pretzel.Logic/Templating/Jekyll/LiquidEngine.cs
@@ -101,6 +101,7 @@ public override void Initialize()
         {
             Template.RegisterFilter(typeof(XmlEscapeFilter));
             Template.RegisterFilter(typeof(DateToXmlSchemaFilter));
+            Template.RegisterFilter(typeof(DateToStringFilter));
             Template.RegisterFilter(typeof(DateToLongStringFilter));
             Template.RegisterFilter(typeof(DateToRfc822FormatFilter));
             Template.RegisterFilter(typeof(CgiEscapeFilter));