diff --git a/types/material-ui/index.d.ts b/types/material-ui/index.d.ts
index 6180f193f7..632ab397b7 100644
--- a/types/material-ui/index.d.ts
+++ b/types/material-ui/index.d.ts
@@ -1055,6 +1055,7 @@ declare namespace __MaterialUI {
             rows?: number;
             style?: React.CSSProperties;
             subtitle?: React.ReactNode;
+            subtitleStyle?: React.CSSProperties;
             title?: React.ReactNode;
             titleBackground?: string;
             titlePosition?: "top" | "bottom";