Documentation: Fix /dev/urandom Signed-off-by: Horst H. von Brand <vonbrand@inf.utfsm.cl>
diff --git a/doc/bn.tex b/doc/bn.tex
index 1494b2d..b79d137 100644
--- a/doc/bn.tex
+++ b/doc/bn.tex
@@ -2343,7 +2343,7 @@ This function generates a random number of \texttt{digits} bits.
The random number generated with these two functions is cryptographically secure if the source of
random numbers the operating systems offers is cryptographically secure. It will use
-\texttt{arc4random()} if the OS is a BSD flavor, Wincrypt on Windows, or \texttt{/dev urandom} on
+\texttt{arc4random()} if the OS is a BSD flavor, Wincrypt on Windows, or \texttt{/dev/urandom} on
all operating systems that have it.
If you have a custom random source you might find the function \texttt(mp\_rand\_source) useful.