diff --git a/packages/web/src/components/CodeListing.tsx b/packages/web/src/components/CodeListing.tsx
index 0c5ac543..a32c1c08 100644
--- a/packages/web/src/components/CodeListing.tsx
+++ b/packages/web/src/components/CodeListing.tsx
@@ -8,10 +8,10 @@ export interface CodeListingProps
 {
   packageName: string;
   sourcePath: string;
-  extract?: <N extends ts.Node>(
+  extract?: (
     sourceFile: SourceFile,
     project: Project
-  ) => N;
+  ) => Pick<ts.Node, "getFullText">;
 }
 
 export default function CodeListing({