diff --git a/docs/modeling.tex b/docs/modeling.tex
index 88003c9..5cd199c 100644
--- a/docs/modeling.tex
+++ b/docs/modeling.tex
@@ -1,4 +1,4 @@
-%!TEX root = ceres.tex
+%!TEX root = ceres-solver.tex
 \chapter{Modeling}
 \label{chapter:api}
 \section{\texttt{CostFunction}}