diff --git a/runtime/syntax/caddyfile.micro b/runtime/syntax/caddyfile.micro
new file mode 100644
index 00000000..253bf992
--- /dev/null
+++ b/runtime/syntax/caddyfile.micro
@@ -0,0 +1,13 @@
+syntax "caddyfile" "Caddyfile"
+
+color identifier "^\s*\S+(\s|$)"
+color type "^([\w.:/-]+,? ?)+[,{]$"
+color constant.specialChar "\s{$"
+color constant.specialChar "^\s*}$"
+color constant.string start="\"" end="\""
+color preproc "\{(\w+|\$\w+|%\w+%)\}"
+color comment "#.*"
+
+# extra and trailing spaces
+color ,red "([[:space:]]{2,}|\t){$"
+color ,red "[[:space:]]+$"