kc3-lang/libtommath

diff --git a/doc/bn.tex b/doc/bn.tex
index c03eeed..eb1c29d 100644
--- a/doc/bn.tex
+++ b/doc/bn.tex
@@ -832,7 +832,7 @@ void mp_set_i64 (mp_int * a, int64_t b);
 void mp_set_u64 (mp_int * a, uint64_t b);
 \end{alltt}
 
-These functions assign the sign and value of the input \texttt{b} to \texttt{mp_int a}.
+These functions assign the sign and value of the input \texttt{b} to \texttt{mp\_int a}.
 The value can be obtained again by calling the following functions.
 
 \index{mp\_get\_int}