diff --git a/config.toml b/config.toml
index 45936d4..2295dfe 100644
--- a/config.toml
+++ b/config.toml
@@ -459,10 +459,16 @@ tags          = "%REPO%/tags%PAGE%.html"
 tag           = "%REPO%/tag/%ID%.html"
 files         = "%REPO%/files.html"
 file          = "%REPO%/file/%ID%.html"
-syntax_css    = "%REPO%/file/syntax.css"
 dir           = "%REPO%/dir/%ID%.html"
 error         = "404.html"
 
+# Output file for syntax highlighting CSS
+#
+# If syntax highlighting is enabled, a single CSS file will be
+# rendered to this path.  It must be included in the file template to
+# render the syntax highlighting correctly.
+syntax_css    = "%REPO%/file/syntax.css"
+
 # Output directory for files specified in global `asset_files`.
 #
 # Each input file is copied to this directory unmodified.