diff --git a/layout/style/nsCSSPropLogicalGroupList.h b/layout/style/nsCSSPropLogicalGroupList.h
index 3d8a52bc90..81dbee641d 100644
--- a/layout/style/nsCSSPropLogicalGroupList.h
+++ b/layout/style/nsCSSPropLogicalGroupList.h
@@ -54,3 +54,4 @@ CSS_PROP_LOGICAL_GROUP_BOX(Offset)
 CSS_PROP_LOGICAL_GROUP_SHORTHAND(Padding)
 CSS_PROP_LOGICAL_GROUP_AXIS(MinSize)
 CSS_PROP_LOGICAL_GROUP_AXIS(Size)
+CSS_PROP_LOGICAL_GROUP_AXIS(Overflow)
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