diff --git a/odoo/addons/base/models/ir_qweb.py b/odoo/addons/base/models/ir_qweb.py
index 47251fcee4b..4cca904926e 100644
--- a/odoo/addons/base/models/ir_qweb.py
+++ b/odoo/addons/base/models/ir_qweb.py
@@ -258,7 +258,7 @@ class IrQWeb(models.AbstractModel, QWeb):
             nodeAttrs = {
                 'media': media,
             }
-        files, remains = self._get_asset_content(bundle, nodeAttrs)
+        files, remains = self._get_asset_content(bundle, nodeAttrs, defer_load=defer_load, lazy_load=lazy_load)
         asset = self.get_asset_bundle(bundle, files, env=self.env, css=css, js=js)
         remains = [node for node in remains if (css and node[0] == 'link') or (js and node[0] == 'script')]
         return remains + asset.to_node(css=css, js=js, debug=debug, async_load=async_load, defer_load=defer_load, lazy_load=lazy_load)
@@ -268,7 +268,7 @@ class IrQWeb(models.AbstractModel, QWeb):
         return [node[1]['href'] for node in asset_nodes if node[0] == 'link']
 
     @tools.ormcache_context('bundle', 'nodeAttrs and nodeAttrs.get("media")', keys=("website_id", "lang"))
-    def _get_asset_content(self, bundle, nodeAttrs=None):
+    def _get_asset_content(self, bundle, nodeAttrs=None, defer_load=False, lazy_load=False):
         asset_paths = self.env['ir.asset']._get_asset_paths(bundle=bundle, css=True, js=True)
 
         files = []
@@ -295,8 +295,10 @@ class IrQWeb(models.AbstractModel, QWeb):
                     tag = 'script'
                     attributes = {
                         "type": mimetype,
-                        "src": path,
                     }
+                    attributes["data-src" if lazy_load else "src"] = path
+                    if defer_load or lazy_load:
+                        attributes["defer"] = "defer"
                 else:
                     tag = 'link'
                     attributes = {