diff --git a/src/sql/base/common/strings.ts b/src/sql/base/common/strings.ts
index 6c61fe9b14..a8f84797e5 100644
--- a/src/sql/base/common/strings.ts
+++ b/src/sql/base/common/strings.ts
@@ -8,7 +8,7 @@
  * being used e.g. in HTMLElement.innerHTML.
  */
 export function escape(html: string): string {
-	return html.replace(/[<|>|&|"]/g, function (match) {
+	return html.replace(/[<|>|&|"|\']/g, function (match) {
 		switch (match) {
 			case '<': return '&lt;';
 			case '>': return '&gt;';