diff --git a/src/components/list_group/index.d.ts b/src/components/list_group/index.d.ts
index 1389d1ecdfa..b798153065e 100644
--- a/src/components/list_group/index.d.ts
+++ b/src/components/list_group/index.d.ts
@@ -51,7 +51,7 @@ declare module '@elastic/eui' {
           alwaysShow?: boolean;
         }
     >;
-    onClick?(): void;
+    onClick?: MouseEventHandler<HTMLButtonElement>;
     wrapText?: boolean;
   };