diff --git a/doc/user-manual/fpakc_UserManual.tex b/doc/user-manual/fpakc_UserManual.tex
index 75f0106..5368d1c 100644
--- a/doc/user-manual/fpakc_UserManual.tex
+++ b/doc/user-manual/fpakc_UserManual.tex
@@ -626,6 +626,14 @@ make
                     File must be located in \textbf{output.path}.
                     The first column is the time in $\unit{s}$.
                     The second column is the factor that will multiply the value set in \textbf{potential}.
+                    
+                 \item \textbf{floating}: The potential is adjusted over time to maintain a zero current on the surface, \textit{i. e.}, the surface is \textit{floating}.                                   
+                   \textbf{potential}: Real.
+                     Potential for Dirichlet boundary condition.
+                   
+                   \textbf{capacitance}: Real.
+                     Capacitance of the surface in Farads.
+                     If none is provided, a default value of $1$ nF is used.
                      
               \end{itemize}