diff --git a/Userland/Libraries/LibWeb/HTML/AttributeNames.h b/Userland/Libraries/LibWeb/HTML/AttributeNames.h
index 9ac71456de8..cf1d3d76343 100644
--- a/Userland/Libraries/LibWeb/HTML/AttributeNames.h
+++ b/Userland/Libraries/LibWeb/HTML/AttributeNames.h
@@ -227,6 +227,7 @@ namespace AttributeNames {
     __ENUMERATE_HTML_ATTRIBUTE(rowspan)                    \
     __ENUMERATE_HTML_ATTRIBUTE(rules)                      \
     __ENUMERATE_HTML_ATTRIBUTE(scheme)                     \
+    __ENUMERATE_HTML_ATTRIBUTE(scope)                      \
     __ENUMERATE_HTML_ATTRIBUTE(scrollamount)               \
     __ENUMERATE_HTML_ATTRIBUTE(scrolldelay)                \
     __ENUMERATE_HTML_ATTRIBUTE(scrolling)                  \