diff --git a/scripts/setup-ubuntu.sh b/scripts/setup-ubuntu.sh
index d0a4e2bfa..88c09b2bb 100755
--- a/scripts/setup-ubuntu.sh
+++ b/scripts/setup-ubuntu.sh
@@ -1,6 +1,7 @@
 #!/bin/sh
 
 PACKAGES=""
+PACKAGES="$PACKAGES ant"			# Used by jack and aptsigner.
 PACKAGES="$PACKAGES asciidoc"
 PACKAGES="$PACKAGES automake"
 PACKAGES="$PACKAGES bison"