diff --git a/_config.yml b/_config.yml
index 4e60b10..dc57ce4 100644
--- a/_config.yml
+++ b/_config.yml
@@ -8,5 +8,12 @@ keep_files:  ['.gitkeep']
 
 encoding: UTF-8
 
+# Collect SCSS files into a collection to suppress them from being
+# added to Jekyll::Page
+collections:
+  scss:
+    output:    true
+    permalink: /assets/css/:path.css
+
 sass:
   style: :compressed
diff --git a/assets/css/pgn4web.scss b/_scss/pgn4web.scss
similarity index 100%
rename from assets/css/pgn4web.scss
rename to _scss/pgn4web.scss
diff --git a/assets/css/table.custom.scss b/_scss/table.custom.scss
similarity index 100%
rename from assets/css/table.custom.scss
rename to _scss/table.custom.scss
diff --git a/assets/css/tour-info.scss b/_scss/tour-info.scss
similarity index 100%
rename from assets/css/tour-info.scss
rename to _scss/tour-info.scss