diff --git a/pkgs/compatibility-pkgs/compatibility-doc/mzlib/scribblings/mzlib.scrbl b/pkgs/compatibility-pkgs/compatibility-doc/mzlib/scribblings/mzlib.scrbl
index 8fc9b1c..2dcc870 100644
--- a/pkgs/compatibility-pkgs/compatibility-doc/mzlib/scribblings/mzlib.scrbl
+++ b/pkgs/compatibility-pkgs/compatibility-doc/mzlib/scribblings/mzlib.scrbl
@@ -54,10 +54,6 @@ constructors.
 
 @; ----------------------------------------------------------------------
 
-@include-section["class100.scrbl"]
-
-@; ----------------------------------------------------------------------
-
 @mzlib[cm]
 
 @deprecated[@racketmodname[compiler/cm]]{}