1 files changed, 3 insertions, 0 deletions
diff --git a/types/ext/language-descriptors.d.ts b/types/ext/language-descriptors.d.ts
index 52d4a5d2..c89b9326 100644
--- a/types/ext/language-descriptors.d.ts
+++ b/types/ext/language-descriptors.d.ts
@@ -136,6 +136,9 @@ type AllTextProcessors = {
         };
     };
     km: Record<string, never>;
+    mn: {
+        pre: CapitalizationPreprocessors;
+    };
     nl: {
         pre: CapitalizationPreprocessors;
     };