diff --git a/packages/web/Cargo.toml b/packages/web/Cargo.toml
index 35eb9c5f1..b2a8e94c8 100644
--- a/packages/web/Cargo.toml
+++ b/packages/web/Cargo.toml
@@ -42,6 +42,7 @@ features = [
     "HtmlFormElement",
     "Text",
     "Window",
+    "console",
 ]
 
 [features]
diff --git a/packages/web/src/dom.rs b/packages/web/src/dom.rs
index f45d6558a..b8e9255f7 100644
--- a/packages/web/src/dom.rs
+++ b/packages/web/src/dom.rs
@@ -45,7 +45,16 @@ impl WebsysDom {
         let document = load_document();
         let root = match document.get_element_by_id(&cfg.rootname) {
             Some(root) => root,
-            None => document.create_element("body").ok().unwrap(),
+            None => {
+                web_sys::console::error_1(
+                    &format!(
+                        "element '#{}' not found. mounting to the body.",
+                        cfg.rootname
+                    )
+                    .into(),
+                );
+                document.create_element("body").ok().unwrap()
+            }
         };
         let interpreter = Channel::default();