diff --git a/packages/next-on-pages/src/buildApplication/processVercelFunctions/dedupeEdgeFunctions.ts b/packages/next-on-pages/src/buildApplication/processVercelFunctions/dedupeEdgeFunctions.ts
index a8ddb00f4..42c23dfe9 100644
--- a/packages/next-on-pages/src/buildApplication/processVercelFunctions/dedupeEdgeFunctions.ts
+++ b/packages/next-on-pages/src/buildApplication/processVercelFunctions/dedupeEdgeFunctions.ts
@@ -246,7 +246,7 @@ async function buildFunctionFile(
 		);
 
 		const namedExportsId = `getNamedExports_${chunkMapIdx++}`;
-		chunksExportsMap.set(namedExportsId, new Set([...keys.split(',')]));
+		chunksExportsMap.set(namedExportsId, new Set(keys.split(',')));
 		functionImports += `import { getNamedExports as ${namedExportsId} } from '${importPath}';\n`;
 	});