diff --git a/layout/reftests/bugs/384762-1.html b/layout/reftests/bugs/384762-1.html
new file mode 100644
index 00000000000..874b19f5fc0
--- /dev/null
+++ b/layout/reftests/bugs/384762-1.html
@@ -0,0 +1 @@
+<div style="margin-top: -10em; clear:both">a
diff --git a/layout/reftests/bugs/reftest.list b/layout/reftests/bugs/reftest.list
index 15b70cf243d..398c354d260 100644
--- a/layout/reftests/bugs/reftest.list
+++ b/layout/reftests/bugs/reftest.list
@@ -277,6 +277,7 @@ random-if(MOZ_WIDGET_TOOLKIT=="cocoa") == 379316-2.html 379316-2-ref.html # bug
 == 382600-1.html 382600-1-ref.html
 == 383551-1.html 383551-1-ref.html
 == 384576-1.html 384576-1-ref.html
+== 384762-1.html about:blank
 == 384876-1.html 384876-1-ref.html
 == 386920-1.html 386920-1-ref.html
 == 387344-1.html 387344-1-ref.html