diff --git a/app/main/views/platform_admin.py b/app/main/views/platform_admin.py
index 07d3b46b5..f0b5983b5 100644
--- a/app/main/views/platform_admin.py
+++ b/app/main/views/platform_admin.py
@@ -88,7 +88,7 @@ def download_all_users():
     writer = csv.DictWriter(
         output,
         fieldnames=fieldnames,
-        delimiter="\t",
+        delimiter=",",
     )
     # Write custom header
     writer.writerow(dict(zip(fieldnames, header)))