--- libtommath-1.0.1.ebuild~	2018-02-04 14:30:54.741733803 +0200
+++ libtommath-1.0.1.ebuild	2018-02-04 13:44:06.616011480 +0200
@@ -63,7 +63,7 @@
 
 	dodoc changes.txt
 
-	use doc && dodoc *.pdf
+	use doc && dodoc doc/*.pdf
 
 	if use examples ; then
 		docinto demo