diff --git a/extensions/vscode-vue-language-features/syntaxes/vue.tmLanguage.json b/extensions/vscode-vue-language-features/syntaxes/vue.tmLanguage.json
index 3b99c609a..f61825a33 100644
--- a/extensions/vscode-vue-language-features/syntaxes/vue.tmLanguage.json
+++ b/extensions/vscode-vue-language-features/syntaxes/vue.tmLanguage.json
@@ -805,29 +805,56 @@
 			]
 		},
 		"vue-directives-expression": {
-			"begin": "(=)('|\")",
-			"beginCaptures": {
-				"1": {
-					"name": "punctuation.separator.key-value.html.vue"
-				},
-				"2": {
-					"name": "punctuation.definition.string.begin.html.vue"
-				}
-			},
-			"end": "(\\2)",
-			"endCaptures": {
-				"1": {
-					"name": "punctuation.definition.string.end.html.vue"
-				}
-			},
 			"patterns": [
 				{
-					"begin": "(?<=('|\"))",
-					"end": "(?=\\1)",
-					"name": "source.ts.embedded.html.vue",
+					"begin": "(=)\\s*('|\")",
+					"beginCaptures": {
+						"1": {
+							"name": "punctuation.separator.key-value.html.vue"
+						},
+						"2": {
+							"name": "punctuation.definition.string.begin.html.vue"
+						}
+					},
+					"end": "(\\2)",
+					"endCaptures": {
+						"1": {
+							"name": "punctuation.definition.string.end.html.vue"
+						}
+					},
+					"name": "xxx",
 					"patterns": [
 						{
-							"include": "source.ts"
+							"begin": "(?<=('|\"))",
+							"end": "(?=\\1)",
+							"name": "source.ts.embedded.html.vue",
+							"patterns": [
+								{
+									"include": "source.ts"
+								}
+							]
+						}
+					]
+				},
+				{
+					"begin": "(=)\\s*(?=[^'\"])",
+					"beginCaptures": {
+						"1": {
+							"name": "punctuation.separator.key-value.html.vue"
+						}
+					},
+					"end": "(?=(\\s|>|\\/>))",
+					"name": "yyy",
+					"patterns": [
+						{
+							"begin": "[^'\"]",
+							"end": "(?=(\\s|>|\\/>))",
+							"name": "source.ts.embedded.html.vue",
+							"patterns": [
+								{
+									"include": "source.ts"
+								}
+							]
 						}
 					]
 				}