diff --git a/psets/pset1-worked_solution.pdf b/psets/pset1-worked_solution.pdf
new file mode 100644
index 0000000..ab64c3d
Binary files /dev/null and b/psets/pset1-worked_solution.pdf differ
diff --git a/psets/pset1-worked_solution.rmd b/psets/pset1-worked_solution.rmd
index 9df46c4..ef425ba 100644
--- a/psets/pset1-worked_solution.rmd
+++ b/psets/pset1-worked_solution.rmd
@@ -10,6 +10,9 @@ output:
       collapsed: true
       smooth_scroll: true
     theme: readable
+  pdf_document:
+    toc: yes
+    toc_depth: '3'
 ---
 
 ```{r setup, include=FALSE}