diff --git a/sections/filter.tex b/sections/filter.tex
index 0bce2aa..eb7dfd9 100644
--- a/sections/filter.tex
+++ b/sections/filter.tex
@@ -116,7 +116,7 @@ \section{Filter\hartl{509}}
 \newline
 \displaystyle
 T_{tp}(s) = \dfrac{A\cdot\omega_0^2}{s^2+\dfrac{\omega_0}{Q}\cdot s+\omega_0^2}\newline
-T_{bp}(s) = \dfrac{A\cdot\dfrac{\omega_0^2}{Q}\cdot s}{s^2+\dfrac{\omega_0}{Q}\cdot s+\omega_0^2}
+T_{bp}(s) = \dfrac{A\cdot\dfrac{\omega_0}{Q}\cdot s}{s^2+\dfrac{\omega_0}{Q}\cdot s+\omega_0^2}
 $
 \end{minipage}
 \pagebreak