diff --git a/dom/base/Element.cpp b/dom/base/Element.cpp
index 6a8825c9721d..7364a6e7545a 100644
--- a/dom/base/Element.cpp
+++ b/dom/base/Element.cpp
@@ -53,7 +53,10 @@
 #include "mozilla/dom/AnimatableBinding.h"
 #include "mozilla/dom/FeaturePolicyUtils.h"
 #include "mozilla/dom/HTMLDivElement.h"
+#include "mozilla/dom/HTMLParagraphElement.h"
+#include "mozilla/dom/HTMLPreElement.h"
 #include "mozilla/dom/HTMLSpanElement.h"
+#include "mozilla/dom/HTMLTableCellElement.h"
 #include "mozilla/dom/KeyframeAnimationOptionsBinding.h"
 #include "mozilla/dom/MutationEventBinding.h"
 #include "mozilla/AnimationComparator.h"
@@ -209,7 +212,10 @@ namespace dom {
 // bucket sizes.
 ASSERT_NODE_SIZE(Element, 128, 80);
 ASSERT_NODE_SIZE(HTMLDivElement, 128, 80);
+ASSERT_NODE_SIZE(HTMLParagraphElement, 128, 80);
+ASSERT_NODE_SIZE(HTMLPreElement, 128, 80);
 ASSERT_NODE_SIZE(HTMLSpanElement, 128, 80);
+ASSERT_NODE_SIZE(HTMLTableCellElement, 128, 80);
 ASSERT_NODE_SIZE(Text, 120, 64);
 
 #undef ASSERT_NODE_SIZE