diff --git a/private_includes/base/basic_format_and_style_settings.ily b/private_includes/base/basic_format_and_style_settings.ily
index ddbdf99..0981f72 100644
--- a/private_includes/base/basic_format_and_style_settings.ily
+++ b/private_includes/base/basic_format_and_style_settings.ily
@@ -58,6 +58,7 @@ generalLayout = \layout {
     \RemoveEmptyStaves
     \override VerticalAxisGroup.remove-first = ##t
     \numericTimeSignature
+    rehearsalMarkFormatter = #format-mark-box-alphabet
     \overrideTimeSignatureSettings
       4/4               % timeSignatureFraction
       1/4               % baseMomentFraction