diff --git a/packages/web/src/app/api/orgs/[orgSlug]/dashboard/sessions/route.ts b/packages/web/src/app/api/orgs/[orgSlug]/dashboard/sessions/route.ts
index 7d6a4d4a..7eb1a578 100644
--- a/packages/web/src/app/api/orgs/[orgSlug]/dashboard/sessions/route.ts
+++ b/packages/web/src/app/api/orgs/[orgSlug]/dashboard/sessions/route.ts
@@ -73,7 +73,10 @@ function mapSessionItem(session: SessionWithInclude): SessionItem {
 
 function csvField(value: string | number | null | undefined) {
   if (value === null || value === undefined) return ''
-  const text = String(value)
+  let text = String(value)
+  if (typeof value !== 'number' && /^[=+\-@\t\r\n]|^[＝＋－＠]/.test(text)) {
+    text = "'" + text
+  }
   return /[",\r\n]/.test(text) ? `"${text.replaceAll('"', '""')}"` : text
 }