--- a/debian/rules	2019-09-07 10:10:56.887480026 +0100
--- b/debian/rules	2019-09-07 10:19:08.226064740 +0100
@@ -40,7 +40,7 @@
 	dh_auto_configure -- $(CONFIGURE_OPTIONS)
 
 override_dh_installdocs:
-	dh_installdocs -X.md5
+	dh_installdocs -X.md5 -X/_formulas. -X/_form0.
 
 override_dh_bugfiles:
 	dh_bugfiles -A