diff --git a/src/app/api/participants/route.js b/src/app/api/participants/route.js
index 4361f539e..d855d716a 100644
--- a/src/app/api/participants/route.js
+++ b/src/app/api/participants/route.js
@@ -110,7 +110,7 @@ export async function GET() {
         grade,
         gender,
         shirt,
-        diet,
+        diet: diet.join(","),
         timestamp,
         resume: resume || "",
         status: roles.participants,