diff --git a/Userland/Libraries/LibWeb/DOM/Document.cpp b/Userland/Libraries/LibWeb/DOM/Document.cpp
index 242b2924b8..7e6592330b 100644
--- a/Userland/Libraries/LibWeb/DOM/Document.cpp
+++ b/Userland/Libraries/LibWeb/DOM/Document.cpp
@@ -546,9 +546,9 @@ JS::Interpreter& Document::interpreter()
     return *m_interpreter;
 }
 
-JS::Value Document::run_javascript(const StringView& source)
+JS::Value Document::run_javascript(const StringView& source, const StringView& filename)
 {
-    auto parser = JS::Parser(JS::Lexer(source));
+    auto parser = JS::Parser(JS::Lexer(source, filename));
     auto program = parser.parse_program();
     if (parser.has_errors()) {
         parser.print_errors();
diff --git a/Userland/Libraries/LibWeb/DOM/Document.h b/Userland/Libraries/LibWeb/DOM/Document.h
index 30c4c17b32..b124965d9e 100644
--- a/Userland/Libraries/LibWeb/DOM/Document.h
+++ b/Userland/Libraries/LibWeb/DOM/Document.h
@@ -157,7 +157,7 @@ public:
 
     virtual JS::Interpreter& interpreter() override;
 
-    JS::Value run_javascript(const StringView&);
+    JS::Value run_javascript(const StringView& source, const StringView& filename = "(unknown)");
 
     NonnullRefPtr<Element> create_element(const String& tag_name);
     NonnullRefPtr<Element> create_element_ns(const String& namespace_, const String& qualifed_name);
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLScriptElement.cpp b/Userland/Libraries/LibWeb/HTML/HTMLScriptElement.cpp
index e3a64bcbb9..2498d5f167 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLScriptElement.cpp
+++ b/Userland/Libraries/LibWeb/HTML/HTMLScriptElement.cpp
@@ -40,6 +40,7 @@ namespace Web::HTML {
 
 HTMLScriptElement::HTMLScriptElement(DOM::Document& document, QualifiedName qualified_name)
     : HTMLElement(document, move(qualified_name))
+    , m_script_filename("(document)")
 {
 }
 
@@ -89,7 +90,7 @@ void HTMLScriptElement::execute_script()
         else
             dbgln_if(HTML_SCRIPT_DEBUG, "HTMLScriptElement: Running inline script");
 
-        document().run_javascript(m_script_source);
+        document().run_javascript(m_script_source, m_script_filename);
 
         document().set_current_script({}, old_current_script);
     } else {
@@ -229,6 +230,7 @@ void HTMLScriptElement::prepare_script(Badge<HTMLDocumentParser>)
 
         if (m_script_type == ScriptType::Classic) {
             // FIXME: This load should be made asynchronous and the parser should spin an event loop etc.
+            m_script_filename = url.basename();
             ResourceLoader::the().load_sync(
                 url,
                 [this, url](auto data, auto&) {
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLScriptElement.h b/Userland/Libraries/LibWeb/HTML/HTMLScriptElement.h
index 194fd4143a..88b55c3bcc 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLScriptElement.h
+++ b/Userland/Libraries/LibWeb/HTML/HTMLScriptElement.h
@@ -72,6 +72,7 @@ private:
     Function<void()> m_script_ready_callback;
 
     String m_script_source;
+    String m_script_filename;
 };
 
 }