diff --git a/glyphs/latin-basic-lower.patel b/glyphs/latin-basic-lower.patel
index fae800e..aea69de 100644
--- a/glyphs/latin-basic-lower.patel
+++ b/glyphs/latin-basic-lower.patel
@@ -228,7 +228,7 @@ create-glyph 'a.upright' : glyph-construction
 		widths.lhs
 		flat RIGHTSB 0 [heading UPWARD]
 		curl RIGHTSB (XH - SMOOTHA)
-		hookend XH
+		hookend XO
 		g4 SB (XH - AHOOK)
 	include : spiro
 		widths.lhs