diff --git a/back/methods/collection/getSales.js b/back/methods/collection/getSales.js
index 8f5bfaeef..a9e5f2e60 100644
--- a/back/methods/collection/getSales.js
+++ b/back/methods/collection/getSales.js
@@ -60,15 +60,17 @@ module.exports = Self => {
         if (print) await Self.rawSql('CALL vn.collection_printSticker(?,NULL)', [id], myOptions);
 
         for (let ticket of tickets) {
-            let observations = ticket.observaciones.split(' ');
+            if (ticket.observaciones) {
+                let observations = ticket.observaciones.split(' ');
 
-            for (let observation of observations) {
-                const salesPerson = ticket.salesPersonFk;
-                if (observation.startsWith('#') || observation.startsWith('@')) {
-                    await models.Chat.send(ctx,
-                        observation,
-                        $t('ticketCommercial', {ticket: ticket.ticketFk, salesPerson})
-                    );
+                for (let observation of observations) {
+                    const salesPerson = ticket.salesPersonFk;
+                    if (observation.startsWith('#') || observation.startsWith('@')) {
+                        await models.Chat.send(ctx,
+                            observation,
+                            $t('ticketCommercial', {ticket: ticket.ticketFk, salesPerson})
+                        );
+                    }
                 }
             }
         }