diff --git a/extensions/emmet/src/defaultCompletionProvider.ts b/extensions/emmet/src/defaultCompletionProvider.ts
index 11767416af7..0aa1049235e 100644
--- a/extensions/emmet/src/defaultCompletionProvider.ts
+++ b/extensions/emmet/src/defaultCompletionProvider.ts
@@ -59,7 +59,6 @@ export class DefaultCompletionItemProvider implements vscode.CompletionItemProvi
 
 		let syntax = emmetMode;
 
-		const helper = getEmmetHelper();
 		let validateLocation = syntax === 'html' || syntax === 'jsx' || syntax === 'xml';
 		let rootNode: Node | undefined;
 		let currentNode: Node | undefined;
@@ -67,6 +66,13 @@ export class DefaultCompletionItemProvider implements vscode.CompletionItemProvi
 		const lsDoc = toLSTextDocument(document);
 		position = document.validatePosition(position);
 
+		// Don't show completions if there's a comment at the beginning of the line
+		const lineRange = new vscode.Range(position.line, 0, position.line, position.character);
+		if (document.getText(lineRange).trimStart().startsWith('//')) {
+			return;
+		}
+
+		const helper = getEmmetHelper();
 		if (syntax === 'html') {
 			if (context.triggerKind === vscode.CompletionTriggerKind.TriggerForIncompleteCompletions) {
 				switch (this.lastCompletionType) {