diff --git a/lib/DirectEditing/TextDirectEditor.php b/lib/DirectEditing/TextDirectEditor.php
index c13a7e9a2d7..01276d14bec 100644
--- a/lib/DirectEditing/TextDirectEditor.php
+++ b/lib/DirectEditing/TextDirectEditor.php
@@ -87,6 +87,7 @@ public function getMimetypes(): array {
 			'text/x-h',
 			'text/x-java-source',
 			'text/x-ldif',
+			'text/x-nfo',
 			'text/x-python',
 			'text/x-shellscript',
 		];
diff --git a/src/helpers/mime.js b/src/helpers/mime.js
index e1d1b31611f..b6806c06e30 100644
--- a/src/helpers/mime.js
+++ b/src/helpers/mime.js
@@ -28,6 +28,7 @@ const openMimetypesPlainText = [
 	'text/x-h',
 	'text/x-java-source',
 	'text/x-ldif',
+	'text/x-nfo',
 	'text/x-python',
 	'text/x-shellscript',
 ]