diff --git a/debian/changelog b/debian/changelog
index 528e3b52c..17dd60fed 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,9 @@
+grub2 (2.00-12) UNRELEASED; urgency=low
+
+  * Silence output from running-in-container.
+
+ -- Colin Watson <cjwatson@debian.org>  Tue, 22 Jan 2013 12:05:47 +0000
+
 grub2 (2.00-11) experimental; urgency=low
 
   [ Adam Conrad ]
diff --git a/debian/postinst.in b/debian/postinst.in
index cf666798d..7ffede461 100644
--- a/debian/postinst.in
+++ b/debian/postinst.in
@@ -442,7 +442,7 @@ case "$1" in
             touch /boot/grub/grub.cfg
           fi
         elif type running-in-container >/dev/null 2>&1 && \
-             running-in-container; then
+             running-in-container >/dev/null; then
           # Skip grub-install in containers.
           :
         elif test -z "$2" || test -e /boot/grub/core.img || \