diff --git a/Userland/Libraries/LibWeb/HTML/HTMLIFrameElement.cpp b/Userland/Libraries/LibWeb/HTML/HTMLIFrameElement.cpp
index 95efd33ca6..c607e0be1c 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLIFrameElement.cpp
+++ b/Userland/Libraries/LibWeb/HTML/HTMLIFrameElement.cpp
@@ -66,6 +66,9 @@ void HTMLIFrameElement::load_src(const String& value)
     if (!m_content_frame)
         return;
 
+    if (value.is_null())
+        return;
+
     auto url = document().complete_url(value);
     if (!url.is_valid()) {
         dbgln("iframe failed to load URL: Invalid URL: {}", value);