diff --git a/package.json b/package.json
index 33bbd2e..1fd551e 100644
--- a/package.json
+++ b/package.json
@@ -19,6 +19,7 @@
 	],
 	"activationEvents": [
 		"onLanguage:markdown",
+		"onLanguage:mdx",
 		"onCommand:zoterolens.showInZotero",
 		"onCommand:zoterolens.openZoteroPDF"
 	],
@@ -38,11 +39,11 @@
 			"commandPalette": [
 				{
 					"command": "zoterolens.showInZotero",
-					"when": "editorLangId == markdown"
+					"when": "editorLangId == markdown || editorLangId == mdx"
 				},
 				{
 					"command": "zoterolens.openZoteroPDF",
-					"when": "editorLangId == markdown"
+					"when": "editorLangId == markdown || editorLangId == mdx"
 				}
 			]
 		},