diff --git a/syntaxes/teal.tmLanguage.json b/syntaxes/teal.tmLanguage.json
index c239b88..79cad51 100644
--- a/syntaxes/teal.tmLanguage.json
+++ b/syntaxes/teal.tmLanguage.json
@@ -29,6 +29,9 @@
 				},
 				{
 					"include": "#long-string"
+				},
+				{
+					"include": "#attribute"
 				}
 			]
 		},
@@ -198,6 +201,10 @@
 				}
 			]
 		},
+		"attribute": {
+			"match": "<\\s*(const|close|total)\\s*>",
+			"name": "storage.modifier.teal"
+		},
 		"expression": {
 			"patterns": [
 				{