diff --git a/aifont.py b/aifont.py
index 6bd0eed..5898faa 100755
--- a/aifont.py
+++ b/aifont.py
@@ -35,7 +35,12 @@ glyph.width = 1024
 
 glyph = icons.createChar(0xE003, "bluesky")
 glyph.importOutlines("/tmp/bluesky.svg")
-glyph.transform((scale/100.0, 0, 0, scale/100.0, 0, 0))
+# center vertically: move to baseline
+bb = glyph.boundingBox()
+yshift = -bb[1]  # move bottom to y=0
+glyph.transform((1, 0, 0, 1, 0, yshift))
+s = scale / 100.0
+glyph.transform((s, 0, 0, s, 0, 0))
 glyph.width = 1024
 
 icons.generate("/tmp/icons.ttf")
diff --git a/aifont.ttf b/aifont.ttf
index 1c5460f..2b3a5e7 100644
Binary files a/aifont.ttf and b/aifont.ttf differ