diff --git a/loopback/locale/en.json b/loopback/locale/en.json
index 46b48e2ea..30b0664b5 100644
--- a/loopback/locale/en.json
+++ b/loopback/locale/en.json
@@ -185,5 +185,6 @@
 	"You don't have enough privileges.": "You don't have enough privileges.",
 	"This ticket is locked.": "This ticket is locked.",
 	"This ticket is not editable.": "This ticket is not editable.",
-	"The ticket doesn't exist.": "The ticket doesn't exist."
+	"The ticket doesn't exist.": "The ticket doesn't exist.",
+	"The response is not a PDF": "The response is not a PDF"
 }
diff --git a/loopback/locale/es.json b/loopback/locale/es.json
index 195b683ad..1cfcf2f83 100644
--- a/loopback/locale/es.json
+++ b/loopback/locale/es.json
@@ -315,5 +315,6 @@
 	"This ticket is not editable.": "Este ticket no es editable.",
 	"The ticket doesn't exist.": "No existe el ticket.",
     "Social name should be uppercase": "La razón social debe ir en mayúscula",
-	"Street should be uppercase": "La dirección fiscal debe ir en mayúscula"
+	"Street should be uppercase": "La dirección fiscal debe ir en mayúscula",
+	"The response is not a PDF": "La respuesta no es un PDF"
 }
diff --git a/modules/route/back/methods/route/downloadCmrsZip.js b/modules/route/back/methods/route/downloadCmrsZip.js
index 61f9701b5..532e019b6 100644
--- a/modules/route/back/methods/route/downloadCmrsZip.js
+++ b/modules/route/back/methods/route/downloadCmrsZip.js
@@ -55,14 +55,10 @@ module.exports = Self => {
                     responseType: 'arraybuffer',
                 });
     
-                if (response.headers['content-type'] !== 'application/pdf') {
-                    throw new UserError(`The response for cmr id ${id} is not a PDF.`);
-                }
+                if (response.headers['content-type'] !== 'application/pdf')
+                    throw new UserError(`The response is not a PDF`);
     
-                const pdfData = response.data;
-                const fileName = `${id}.pdf`;
-    
-                zip.file(fileName, pdfData, { binary: true });
+                zip.file(`${id}.pdf`, response.data, { binary: true });
             }
     
             const zipStream = zip.generateNodeStream({ streamFiles: true });