diff --git a/UPGRADING b/UPGRADING
index 0a639508ef6..7cb73a1271d 100644
--- a/UPGRADING
+++ b/UPGRADING
@@ -552,7 +552,7 @@ PHP 8.5 UPGRADE NOTES
   . Now avoids creating extra string copies when converting strings
     for use in the collator.
 
-MBString:
+- MBString:
   . The parts of the code that used SSE2 have been adapted to use SIMD
     with ARM NEON as well.