diff --git a/newcommands.tex b/newcommands.tex
index bd2e3b5aad13656128160465c1168b025ee8c445..05836dd1007ce4a615aec699f84438ecdd6f7025 100644
--- a/newcommands.tex
+++ b/newcommands.tex
@@ -4,7 +4,7 @@
 \newcommand{\NN}{\mathbb{N}}
 \newcommand{\PP}{\mathbb{P}}
 \newcommand{\chern}{\operatorname{ch}}
-\newcommand{\coh}{\operatorname{coh}}
+\newcommand{\coh}{\mathrm{Coh}}
 \newcommand{\homol}{\mathcal{H}}
 \newcommand{\lcm}{\operatorname{lcm}}
 \newcommand{\firsttilt}[1]{\mathcal{B}^{#1}}
diff --git a/packages.tex b/packages.tex
index a8e5b585f5186a5f377cda1edbfd2eccdab439e6..828da3632481371b498146151d3ed837f27b09c3 100644
--- a/packages.tex
+++ b/packages.tex
@@ -8,3 +8,4 @@
 \usepackage{cancel}
 \usepackage{mathtools}
 \usepackage[]{breqn}
+