diff --git a/bedstead.c b/bedstead.c
index a869991..ebb5e98 100644
--- a/bedstead.c
+++ b/bedstead.c
@@ -2625,7 +2625,7 @@ static struct glyph {
  COMPAT_ALIAS("block.sep6", "u1CE8F"),
 
  /* Compatibility alias added in 3.246. */
- COMPAT_ALIAS("Wdieresis.sc", "wdieresis"),
+ COMPAT_ALIAS("Wdieresis.sc", "Wdieresis"),
 
  /* Compatibility aliases for 4-cell separated graphics. */
 #define M(x, n) \