diff --git a/extensions/markdown/package.json b/extensions/markdown/package.json
index 5517aae68a7..f83bcb53412 100644
--- a/extensions/markdown/package.json
+++ b/extensions/markdown/package.json
@@ -209,6 +209,10 @@
 				{
 					"command": "markdown.showPreviewSecuritySelector",
 					"when": "markdownPreviewFocus"
+				},
+				{
+					"command": "markdown.preview.toggleLock",
+					"when": "markdownPreviewFocus"
 				}
 			]
 		},