diff --git a/doc/ack.texi b/doc/ack.texi
index 98f41ef89..ab27a59d5 100644
--- a/doc/ack.texi
+++ b/doc/ack.texi
@@ -61,6 +61,8 @@ Bugfixes, documentation, encouragement, and code has been contributed by:
 @item Douglas E Engert
 @item Jason McIntyre
 @item Andreaw Bartlett
+@item Rafal Malinowski
+@item Michael Fromberger
 @item and we hope that those not mentioned here will forgive us.
 @end table