diff --git a/layouts/partials/head.html b/layouts/partials/head.html
index 445f778..1374c0f 100644
--- a/layouts/partials/head.html
+++ b/layouts/partials/head.html
@@ -44,7 +44,7 @@
 
   <!-- Preload -->
   {{ $dark_icon := "theme.png" }} {{ if site.Params.monoDarkIcon }} {{
-  $dark_icon := "theme.svg" }} {{ end }}
+  $dark_icon = "theme.svg" }} {{ end }}
   <link rel="preload" as="image" href="{{ $dark_icon | absURL }}" />
 
   {{ $avatar_url := $.Scratch.Get "avatar_url" }}