diff --git a/docs/Filament.md.html b/docs/Filament.md.html
index 773645faf3..18cb578eb6 100644
--- a/docs/Filament.md.html
+++ b/docs/Filament.md.html
@@ -3682,7 +3682,7 @@ However we only need the real bases:
 
 $$\begin{align*}
 y^{m > 0}_l &= \sqrt{2} K^m_l cos(m \phi) P^m_l(cos \theta) \\
-y^{m < 0}_l &= \sqrt{2} K^m_l sin(m \phi) P^{|m|}_l(cos \theta) \\
+y^{m < 0}_l &= \sqrt{2} K^m_l sin(|m| \phi) P^{|m|}_l(cos \theta) \\
 y^0_l &= K^0_l P^0_l(cos \theta)
 \end{align*}$$