1 files changed, 1 insertions, 1 deletions
diff --git a/control b/control
index 52697b7..161e88d 100644
--- a/control
+++ b/control
@@ -1,4 +1,4 @@
-Build-Depends: gpg, dirmngr, opkbuild (>= 4.0.1), opkhelper-3.0 (>= 3.1.2)
+Build-Depends: gpg, dirmngr, opkbuild (>= 4.0.1), opkhelper-3.0 (>= 3.1.2), m4
 Maintainer: Patrick McDermott <patrick.mcdermott@libiquity.com>,
  "David T. Stanford" <dstanford@daemonbox.net>
 Homepage: https://gmplib.org/