diff --git a/esphome/components/web_server/web_server.cpp b/esphome/components/web_server/web_server.cpp
index 34a4684816..a8d94d80da 100644
--- a/esphome/components/web_server/web_server.cpp
+++ b/esphome/components/web_server/web_server.cpp
@@ -383,8 +383,9 @@ static void set_json_id(JsonObject &root, EntityBase *obj, const std::string &id
     root["name"] = obj->get_name();
     root["icon"] = obj->get_icon();
     root["entity_category"] = obj->get_entity_category();
-    if (obj->is_disabled_by_default())
-      root["is_disabled_by_default"] = obj->is_disabled_by_default();
+    bool is_disabled = obj->is_disabled_by_default();
+    if (is_disabled)
+      root["is_disabled_by_default"] = is_disabled;
   }
 }