diff --git a/21_North_American_interventions_in_Latin_America,_Paco_Pena.tex b/21_North_American_interventions_in_Latin_America,_Paco_Pena.tex
index 387d4ff..b81c657 100644
--- a/21_North_American_interventions_in_Latin_America,_Paco_Pena.tex
+++ b/21_North_American_interventions_in_Latin_America,_Paco_Pena.tex
@@ -1,4 +1,4 @@
-\chapter{North American interventions in Latin America}
+\chapter[Interventions in Latin America]{North American interventions in Latin America}
 
 \chapterauthor{Paco Pena}