define G

1 files changed, 1 insertions, 1 deletions

diff --git a/doc/paper/taler.tex b/doc/paper/taler.tex
index 7c913cc1f..fb8965be5 100644
--- a/doc/paper/taler.tex
+++ b/doc/paper/taler.tex
@@ -856,7 +856,7 @@ The following steps are executed for microdonations with upgrade probability $p$
 \subsection{Refreshing}
 
 The following protocol is executed in order to refresh a coin $C'$ of denomination $K$ to
-a fresh coin $\widetilde{C}$ with the same denomination. In the protocol, $\kappa \ge 3$ is a security parameter.
+a fresh coin $\widetilde{C}$ with the same denomination. In the protocol, $\kappa \ge 3$ is a security parameter and $G$ is the generator of the elliptic curve.
 
 \begin{enumerate}
   \item For each $i = 1,\ldots,\kappa$, the customer