diff --git a/extensions/javascript/javascript-language-configuration.json b/extensions/javascript/javascript-language-configuration.json
index 2474a73ed83..f458f66187f 100644
--- a/extensions/javascript/javascript-language-configuration.json
+++ b/extensions/javascript/javascript-language-configuration.json
@@ -230,12 +230,8 @@
 		},
 		// Add // when pressing enter from inside line comment
 		{
-			"beforeText": {
-				"pattern": "(?<!\\\\)(?<!\\w:)\/\/.*"
-			},
-			"afterText": {
-				"pattern": "^(?!\\s*$).+"
-			},
+			"beforeText": "(?<!\\\\|\\w:)\/\/\\s*\\S",
+			"afterText": "^(?!\\s*$).+",
 			"action": {
 				"indent": "none",
 				"appendText": "// "
diff --git a/extensions/typescript-basics/language-configuration.json b/extensions/typescript-basics/language-configuration.json
index 9b479773fd2..336daa91339 100644
--- a/extensions/typescript-basics/language-configuration.json
+++ b/extensions/typescript-basics/language-configuration.json
@@ -248,12 +248,8 @@
 		},
 		// Add // when pressing enter from inside line comment
 		{
-			"beforeText": {
-				"pattern": "(?<!\\\\)(?<!\\w:)\/\/.*"
-			},
-			"afterText": {
-				"pattern": "^(?!\\s*$).+"
-			},
+			"beforeText": "(?<!\\\\|\\w:)\/\/\\s*\\S",
+			"afterText": "^(?!\\s*$).+",
 			"action": {
 				"indent": "none",
 				"appendText": "// "