diff --git a/source/signal_processing/fourier_tables.rst b/source/signal_processing/fourier_tables.rst
index 94467f1..1014e3c 100644
--- a/source/signal_processing/fourier_tables.rst
+++ b/source/signal_processing/fourier_tables.rst
@@ -32,7 +32,7 @@ Table of properties
    :math:`x(at)`, :math:`\frac{1}{|a|}X(\frac{\omega}{a})`
    :math:`\frac{d}{dt}x(t)`, :math:`j\omega X(\omega)`
    :math:`tx(t)`, :math:`j\frac{d}{d\omega}X(\omega)`
-   :math:`x_1(t) \ast x_2(t)`, :math:`X_1(\omega) + X_2(\omega)`
+   :math:`x_1(t) \ast x_2(t)`, :math:`X_1(\omega)X_2(\omega)`
    :math:`x_1(t)x_2(t)`, :math:`\frac{1}{2\pi}X_1(\omega) \ast X_2(\omega)`
    :math:`x(t)^*`, :math:`X^*(-\omega)`
    :math:`X(t)`, :math:`2\pi x(-\omega)`