diff --git a/algebra.sty b/algebra.sty
index 9fb13bf..a655fc0 100644
--- a/algebra.sty
+++ b/algebra.sty
@@ -34,7 +34,6 @@
 \newcommand{\Vs}{\ensuremath V_{\mathbb{S}}}%\Spec}}
 \newcommand{\Va}{\ensuremath V_{\mathbb{A}}}%\Spec}}
 \newcommand{\Vp}{\ensuremath V_{\mathbb{P}}}%\Spec}}
-\newcommand{\Pn}{\bP^n}%\Spec}}
 
 \DeclareMathOperator{\nil}{\mathfrak{nil}}