diff --git a/Tests/LibWeb/Text/expected/HTML/script-async-attribute.txt b/Tests/LibWeb/Text/expected/HTML/script-async-attribute.txt
new file mode 100644
index 00000000000..50e1116c4a2
--- /dev/null
+++ b/Tests/LibWeb/Text/expected/HTML/script-async-attribute.txt
@@ -0,0 +1,2 @@
+includeScript.async = false
+script.async = true
diff --git a/Tests/LibWeb/Text/input/HTML/script-async-attribute.html b/Tests/LibWeb/Text/input/HTML/script-async-attribute.html
new file mode 100644
index 00000000000..897291dfc0b
--- /dev/null
+++ b/Tests/LibWeb/Text/input/HTML/script-async-attribute.html
@@ -0,0 +1,11 @@
+<!DOCTYPE html>
+<script src="../include.js" id="include-script"></script>
+<script>
+    test(() => {
+        const includeScript = document.querySelector("#include-script");
+        println(`includeScript.async = ${includeScript.async}`);
+
+        const script = document.createElement("script");
+        println(`script.async = ${script.async}`);
+    });
+</script>
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLScriptElement.h b/Userland/Libraries/LibWeb/HTML/HTMLScriptElement.h
index 1505d916999..a2156116918 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLScriptElement.h
+++ b/Userland/Libraries/LibWeb/HTML/HTMLScriptElement.h
@@ -94,7 +94,7 @@ private:
     JS::GCPtr<DOM::Document> m_preparation_time_document;
 
     // https://html.spec.whatwg.org/multipage/scripting.html#script-force-async
-    bool m_force_async { false };
+    bool m_force_async { true };
 
     // https://html.spec.whatwg.org/multipage/scripting.html#already-started
     bool m_already_started { false };
