diff --git a/src/types.ts b/src/types.ts
index d259913e..25897d44 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -3733,6 +3733,7 @@ export type Key =
         | "9"
         | "0"
         | "-"
+        | "+"
         | "="
         | "q"
         | "w"