diff --git a/app/authorization/server/startup.js b/app/authorization/server/startup.js
index 2ca73f01092..7db90f9e32c 100644
--- a/app/authorization/server/startup.js
+++ b/app/authorization/server/startup.js
@@ -187,7 +187,15 @@ Meteor.startup(function() {
 		}, { fields: { _id: 1 } });
 
 		if (!existent) {
-			Permissions.upsert({ _id: permissionId }, { $set: permission });
+			try {
+				Permissions.upsert({ _id: permissionId }, { $set: permission });
+			} catch (e) {
+				if (!e.message.includes('E11000')) {
+					// E11000 refers to a MongoDB error that can occur when using unique indexes for upserts
+					// https://docs.mongodb.com/manual/reference/method/db.collection.update/#use-unique-indexes
+					Permissions.upsert({ _id: permissionId }, { $set: permission });
+				}
+			}
 		}
 
 		delete previousSettingPermissions[permissionId];