diff --git a/cpdfmanual.tex b/cpdfmanual.tex
index 51d7b38..6a1a940 100644
--- a/cpdfmanual.tex
+++ b/cpdfmanual.tex
@@ -4,6 +4,7 @@
 % Add -args, clean up -control documentation
 % Explain quadruple backslash on command line leading to single real slash \\\\ -> \\ -> \
 % Explain page labels in -page-info and new -add-page-labels functionality
+% Correct the documentation for -diagonal and -reverse-diagonal
 
 \documentclass[a4paper,makeidx]{memoir}
 \usepackage{palatino}