diff --git a/lib/ace/mode/dockerfile_highlight_rules.js b/lib/ace/mode/dockerfile_highlight_rules.js
index 311816a5..3ea8c088 100644
--- a/lib/ace/mode/dockerfile_highlight_rules.js
+++ b/lib/ace/mode/dockerfile_highlight_rules.js
@@ -39,9 +39,9 @@ var DockerfileHighlightRules = function() {
 
     var startRules = this.$rules.start;
     for (var i = 0; i < startRules.length; i++) {
-        if (startRules[i].token == "constant.language") {
+        if (startRules[i].token == "variable.language") {
             startRules.splice(i, 0, {
-                token: "variable.language",
+                token: "constant.language",
                 regex: "(?:^(?:FROM|MAINTAINER|RUN|CMD|EXPOSE|ENV|ADD|ENTRYPOINT|VOLUME|USER|WORKDIR|ONBUILD)\\b)",
                 caseInsensitive: true
             });