diff --git a/ereuse_devicehub/static/js/main_inventory.build.js b/ereuse_devicehub/static/js/main_inventory.build.js
index 1e1b21fd..7737a44c 100644
--- a/ereuse_devicehub/static/js/main_inventory.build.js
+++ b/ereuse_devicehub/static/js/main_inventory.build.js
@@ -216,7 +216,7 @@ function removeLot() {
 
 function removeTag() {
   const devices = TableController.getSelectedDevices();
-  const devices_id = devices.map(dev => dev.data);
+  const devices_id = devices.map(dev => $(dev).attr('data'));
 
   if (devices_id.length == 1) {
     const url = "/inventory/tag/devices/".concat(devices_id[0], "/del/");
@@ -228,7 +228,7 @@ function removeTag() {
 
 function addTag() {
   const devices = TableController.getSelectedDevices();
-  const devices_id = devices.map(dev => dev.data);
+  const devices_id = devices.map(dev => $(dev).attr('data'));
 
   if (devices_id.length == 1) {
     $("#addingTagModal .pol").hide();
diff --git a/ereuse_devicehub/static/js/main_inventory.js b/ereuse_devicehub/static/js/main_inventory.js
index 9c9b8d0a..d80d6c66 100644
--- a/ereuse_devicehub/static/js/main_inventory.js
+++ b/ereuse_devicehub/static/js/main_inventory.js
@@ -207,7 +207,7 @@ function removeLot() {
 
 function removeTag() {
     const devices = TableController.getSelectedDevices();
-    const devices_id = devices.map(dev => dev.data);
+    const devices_id = devices.map(dev => $(dev).attr("data"));
     if (devices_id.length == 1) {
         const url = `/inventory/tag/devices/${devices_id[0]}/del/`;
         window.location.href = url;
@@ -218,7 +218,7 @@ function removeTag() {
 
 function addTag() {
     const devices = TableController.getSelectedDevices();
-    const devices_id = devices.map(dev => dev.data);
+    const devices_id = devices.map(dev => $(dev).attr("data"));
     if (devices_id.length == 1) {
         $("#addingTagModal .pol").hide();
         $("#addingTagModal .btn-primary").show();
diff --git a/ereuse_devicehub/static/js/print.pdf.js b/ereuse_devicehub/static/js/print.pdf.js
index b17f70ee..e0109d33 100644
--- a/ereuse_devicehub/static/js/print.pdf.js
+++ b/ereuse_devicehub/static/js/print.pdf.js
@@ -234,9 +234,9 @@ function printpdf() {
             if ($("#qrCheck").prop('checked')) {
                 var h = hspace + border - img_side/2;
                 var w = border*2 + img_side;
-                pdf.text(tag, w, h);
+                pdf.text(String(tag), w, h);
             } else {
-                pdf.text(tag, border, hspace);
+                pdf.text(String(tag), border, hspace);
             }
             hspace += line;
         };
@@ -244,26 +244,26 @@ function printpdf() {
             var sn = $(y).data('sid');
             pdf.setFontSize(12);
             if (sn) {
-                pdf.text(sn, border, hspace);
+                pdf.text(String(sn), border, hspace);
                 hspace += line;
             }
         };
         if ($("#serialNumberCheck").prop('checked')) {
             var sn = $(y).data('serial-number');
             pdf.setFontSize(12);
-            pdf.text(sn, border, hspace);
+            pdf.text(String(sn), border, hspace);
             hspace += line;
         };
         if ($("#manufacturerCheck").prop('checked')) {
             var sn = $(y).data('manufacturer');
             pdf.setFontSize(12);
-            pdf.text(sn, border, hspace);
+            pdf.text(String(sn), border, hspace);
             hspace += line;
         };
         if ($("#modelCheck").prop('checked')) {
             var sn = $(y).data('model');
             pdf.setFontSize(8);
-            pdf.text(sn, border, hspace);
+            pdf.text(String(sn), border, hspace);
             hspace += line;
         };
     });