diff --git a/content/base/src/nsGkAtomList.h b/content/base/src/nsGkAtomList.h
index 753ec52817c..a0dfb7c5ad0 100644
--- a/content/base/src/nsGkAtomList.h
+++ b/content/base/src/nsGkAtomList.h
@@ -88,7 +88,6 @@ GK_ATOM(ancestor, "ancestor")
 GK_ATOM(ancestorOrSelf, "ancestor-or-self")
 GK_ATOM(anchor, "anchor")
 GK_ATOM(_and, "and")
-GK_ATOM(anonid, "anonid")
 GK_ATOM(any, "any")
 GK_ATOM(mozapp, "mozapp")
 GK_ATOM(applet, "applet")
@@ -2115,6 +2114,7 @@ GK_ATOM(other,      "other")
 GK_ATOM(alert, "alert")
 GK_ATOM(alertdialog, "alertdialog")
 GK_ATOM(application, "application")
+GK_ATOM(anonid, "anonid")
 GK_ATOM(aria_activedescendant, "aria-activedescendant")
 GK_ATOM(aria_atomic, "aria-atomic")
 GK_ATOM(aria_autocomplete, "aria-autocomplete")