runeerror is 0xfffd not 0xffdf
diff --git a/font/pelm/latin1.8.font b/font/pelm/latin1.8.font
index 25578b9..56d0aa8 100644
--- a/font/pelm/latin1.8.font
+++ b/font/pelm/latin1.8.font
@@ -1,4 +1,4 @@
 14	11
 0x0000	0x00FF	latin1.8
 0x2100	0x2138	../misc/letterlike.8
-0xFFDF 0xFFDF 0x80 latin1.8
+0xFFFD 0xFFFD 0x80 latin1.8