diff --git a/parts/1-packages.tex b/parts/1-packages.tex
index e168211..8dc5509 100644
--- a/parts/1-packages.tex
+++ b/parts/1-packages.tex
@@ -15,7 +15,14 @@
 \usepackage{sim-os-menus}
 \usepackage{enumitem}
 %\usepackage{etoolbox}
-\usepackage[splitindex]{imakeidx}
+
+%% Must keep these lines together for index to work
+%\usepackage[splitindex]{imakeidx}[2012/05/09]
+\usepackage{imakeidx}
+\makeindex[title=Commands, intoc, columnseprule, options= -s parts/index_style.ist]
+\makeindex[name=concepts, title=Concepts, intoc, columnseprule, options= -s parts/index_style.ist]
+
+
 \usepackage{aurical} % Font for section titles
 %\usepackage{libertinus} % Font for section titles
 %\usepackage{uncial} % Font for section titles