diff --git a/docs/src/userinterface.tex b/docs/src/userinterface.tex
index d2c8f155..b1a2424c 100644
--- a/docs/src/userinterface.tex
+++ b/docs/src/userinterface.tex
@@ -334,7 +334,7 @@ be applied.
                                                       \textbf{\texttt{'SOC1'}},
                                                       \textbf{\texttt{'SOC2'}}   
                          & Type of aggregation algorithm: currently,
-                           we implement to measures of strength of
+                           we implement two measures of strength of
                            connection, the one by Van\v{e}k, Mandel
                            and Brezina~\cite{VANEK_MANDEL_BREZINA},
                            and the one by Gratton et al~\cite{GrHeJi:16}. \\ \hline