diff --git a/extensions/typescript-language-features/src/features/completions.ts b/extensions/typescript-language-features/src/features/completions.ts
index 0f5aa0560d9..b8dcf10b71a 100644
--- a/extensions/typescript-language-features/src/features/completions.ts
+++ b/extensions/typescript-language-features/src/features/completions.ts
@@ -416,7 +416,7 @@ class TypeScriptCompletionItemProvider implements vscode.CompletionItemProvider
 			isNewIdentifierLocation = response.body.isNewIdentifierLocation;
 			isMemberCompletion = response.body.isMemberCompletion;
 			if (isMemberCompletion) {
-				const dotMatch = line.text.slice(0, position.character).match(/\.\s*$/) || undefined;
+				const dotMatch = line.text.slice(0, position.character).match(/\??\.\s*$/) || undefined;
 				if (dotMatch) {
 					const range = new vscode.Range(position.translate({ characterDelta: -dotMatch[0].length }), position);
 					const text = document.getText(range);