diff --git a/Makefile b/Makefile
index 3edf508..aecabff 100644
--- a/Makefile
+++ b/Makefile
@@ -12,7 +12,7 @@ clean:
 	rm -f figures/*.pdf
 
 viewpdf: all
-	evince text.pdf
+	evince *.pdf
 
 spell:
 	aspell -c -t --tex-check-comments -b text.tex