diff --git a/nitroxides.tex b/nitroxides.tex
index 2e7cf09..8e51726 100644
--- a/nitroxides.tex
+++ b/nitroxides.tex
@@ -267,7 +267,7 @@ \subsection{Impact of ion-pair formation on redox potentials}
 \end{align}
 in which $K_{ij}= \exp\left[-\frac{\Delta G_{cplx}^\star}{RT}\right]$, where $\Delta G_{cplx}^\star$ is the free Gibbs energy change [computed with Eq.~\eqref{eq:gtot}] for a given complexation reaction.
 
-An example is provided in Fig.~S2: while $K_{(i+1)1} / K_{i1}$ ($i\in[0,1]$) governs the behavior at low $[X]$, the trend at high $[X]$ is determined by $K_{(i+1)2} / K_{i2}$.
+An example is provided in Fig.~S2: while $K_{(i+1)1} / K_{i1}$ ($i\in[0,1]$) governs the behavior at low $[X]$, the trend at high $[X]$ is determined by $K_{(i+1)2} / K_{i2}$.\todo{now, it is not that simple ;)}
 
 \subsection{Model for the ion-pair formation}