diff --git a/addons/web/static/src/js/search.js b/addons/web/static/src/js/search.js
index 2c31b5435be..196fdcac0cd 100644
--- a/addons/web/static/src/js/search.js
+++ b/addons/web/static/src/js/search.js
@@ -1026,7 +1026,7 @@ instance.web.search.Field = instance.web.search.Input.extend( /** @lends instanc
 
         if (contexts.length === 1) { return contexts[0]; }
 
-        return _.extend(instance.web.CompoundContext, {
+        return _.extend(new instance.web.CompoundContext, {
             __contexts: contexts
         });
     },