diff --git a/papers/CasperTFG/CasperTFG.tex b/papers/CasperTFG/CasperTFG.tex
index a8eb2ee..a6ef97f 100644
--- a/papers/CasperTFG/CasperTFG.tex
+++ b/papers/CasperTFG/CasperTFG.tex
@@ -499,7 +499,7 @@ Block structures are modified so that the justifications also include a weights
 \end{equation*}
 \end{defn}
 
-We use $\mathcal{W}$ to represent the set of all weights mappings $W:v \in \mathcal{V} \to \mathbb{R}_+$
+We use $\mathcal{W}$ to represent the set of all weights mappings $W:\mathcal{V} \to \mathbb{R}_+$
 
 We redefine a block's ``score'' to use the weights in the parent block. The score, remember, is used to by the GHOST fork choice rule to choose between children of some block. Those children (naturally) have the same parent, and therefore will have scores determined by the latest messages from the same validators.