diff --git a/types/react-syntax-highlighter/index.d.ts b/types/react-syntax-highlighter/index.d.ts
index b5482a4522..c631dea9f7 100644
--- a/types/react-syntax-highlighter/index.d.ts
+++ b/types/react-syntax-highlighter/index.d.ts
@@ -7,8 +7,6 @@
 
 type lineTagPropsFunction = (lineNumber: number) => React.DOMAttributes<HTMLElement>
 
-type f = React.SyntheticEvent;
-
 interface SyntaxHighlighterProps {
     language?: string;
     style?: any;