diff --git a/html/semantics/interactive-elements/the-dialog-element/abspos-dialog-layout.html b/html/semantics/interactive-elements/the-dialog-element/abspos-dialog-layout.html
index e5453d73ee86f1d..3421747b68f1203 100644
--- a/html/semantics/interactive-elements/the-dialog-element/abspos-dialog-layout.html
+++ b/html/semantics/interactive-elements/the-dialog-element/abspos-dialog-layout.html
@@ -155,8 +155,8 @@
     dialog.remove();
 
     relativeContainer.appendChild(dialog);
-    checkVerticallyCentered(dialog);
-}, "Dialog should still be centered when removed, and re-added to the document.");
+    checkNotVerticallyCentered(dialog);
+}, "Dialog should not still be centered when removed, and re-added to the document.");
 
 test(function() {
     this.add_cleanup(reset);