diff --git a/doc/docsrc/asn1c-usage.tex b/doc/docsrc/asn1c-usage.tex
index 1b91adcd..0694a1b4 100644
--- a/doc/docsrc/asn1c-usage.tex
+++ b/doc/docsrc/asn1c-usage.tex
@@ -142,7 +142,7 @@ END
 \item Compile it into the set of .c and .h files using \cmd{asn1c} compiler:
 
 \begin{bash}
-asn1c -pdu=%\textbf{Rectangle}% -gen-OER -gen-PER %\textbf{rectangle.asn}%
+asn1c -gen-OER -gen-PER %\textbf{rectangle.asn}%
 \end{bash}
 
 \item Create the converter and dumper: