diff --git a/layout.sty b/layout.sty
index dd355554e1d52075e6ab99e31fe7392f88c754b8..6ed64f1ffd5a5efdb30673a9a2adc84018bd5aa8 100644
--- a/layout.sty
+++ b/layout.sty
@@ -1338,7 +1338,7 @@ interior code={ \path[tcb fill interior] ([xshift=-2mm]interior.west)
                 \ifnum\thetrack=1%
                   \sqr\else\sqn%
                 \fi\quad%
-                (\thetrack)\quad%
+                Part~\thetrack:\quad%
                   \raggedright%
                 }%
                 \thecontentslabel%