diff --git a/Makefile b/Makefile
index 87763ad..d580680 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
-HANDOUTS = $(patsubst %.tex,%.pdf,$(wildcard revealjs/*/handout.tex))
+HANDOUTS = $(patsubst %.tex,%.pdf,$(wildcard */*/handout.tex))
 REVEALJS = $(patsubst %.md,%.html,$(wildcard revealjs/*/index.md))
 LATEX = $(patsubst %.tex,%.pdf,$(wildcard latex/*/index.tex))