diff --git a/Documentation/UserManual/manual.tex b/Documentation/UserManual/manual.tex
index 34a448e..7812251 100644
--- a/Documentation/UserManual/manual.tex
+++ b/Documentation/UserManual/manual.tex
@@ -191,7 +191,7 @@ The implemented USB device is limited to USB 2.0 Fullspeed and data transmission
 \subsection{External Power}
 Input jack for external DC power (\SI{5}{\volt}, \SI{1.5}{\ampere}, positive center pin). If a power source is connected, no current is drawn from the USB port anymore.
 \subsection{RF ports}
-RF connector to connect the DUT. Both ports are identical and the device architecture support full S-Parameter measurements (S11, S21, S12 and S22).
+RF connector to connect the DUT. Both ports are identical and the device architecture supports full S-Parameter measurements (S11, S21, S12 and S22).
 \begin{important}
 The RF ports have no input protection, do not apply a signal with more than +\SI{10}{\dBm} of power.
 \end{important}