diff --git a/runtime/syntax/dts.vim b/runtime/syntax/dts.vim
index be51ab5..bb7eff7 100644
--- a/runtime/syntax/dts.vim
+++ b/runtime/syntax/dts.vim
@@ -1,7 +1,7 @@
 " Vim syntax file
 " Language:	dts/dtsi (device tree files)
 " Maintainer:	Daniel Mack <vim@zonque.org>
-" Last Change:	2022 Jun 14
+" Last Change:	2023 Apr 28
 
 if exists("b:current_syntax")
   finish
@@ -10,9 +10,10 @@
 
 syntax region dtsComment        start="/\*"  end="\*/"
 syntax match  dtsReference      "&[[:alpha:][:digit:]_]\+"
+syntax match  dtsReference      "&{[[:alpha:][:digit:]@_/-]\+}"
 syntax region dtsBinaryProperty start="\[" end="\]"
 syntax match  dtsStringProperty "\".*\""
-syntax match  dtsKeyword        "/.\{-1,\}/"
+syntax match  dtsKeyword        "/[[:alpha:][:digit:]-]\+/\([[:space:]]\|;\)"he=e-1
 syntax match  dtsLabel          "^[[:space:]]*[[:alpha:][:digit:]_]\+:"
 syntax match  dtsNode           /[[:alpha:][:digit:]-_]\+\(@[0-9a-fA-F]\+\|\)[[:space:]]*{/he=e-1
 syntax region dtsCellProperty   start="<" end=">" contains=dtsReference,dtsBinaryProperty,dtsStringProperty,dtsComment