diff --git a/Propellor/Property/SiteSpecific/JoeySites.hs b/Propellor/Property/SiteSpecific/JoeySites.hs
index fa8a4c6..74c47be 100644
--- a/Propellor/Property/SiteSpecific/JoeySites.hs
+++ b/Propellor/Property/SiteSpecific/JoeySites.hs
@@ -115,6 +115,16 @@ mumbleServer hosts = combineProperties "mumble.debian.net"
 	, Apt.serviceInstalledRunning "mumble-server"
 	]
 
+obnamLowMem :: Property
+obnamLowMem = propertyList "obnam tuned for low memory use"
+	[ Obnam.latestVersion
+	, "/etc/obnam.conf" `File.containsLines`
+		[ "# Suggested by liw to keep Obnam memory consumption down (at some speed cost)."
+		, "upload-queue-size = 128"
+		, "lru-size = 128"
+		]
+	]
+
 -- git.kitenet.net and git.joeyh.name
 gitServer :: [Host] -> Property
 gitServer hosts = propertyList "git.kitenet.net setup"
diff --git a/config-joey.hs b/config-joey.hs
index f0aaba5..e95e05d 100644
--- a/config-joey.hs
+++ b/config-joey.hs
@@ -100,6 +100,7 @@ hosts =               --                  (o)  `
 		& Apt.unattendedUpgrades
 		& Apt.serviceInstalledRunning "ntp"
 		& Postfix.satellite
+		& JoeySites.obnamLowMem
 	
 		& Apt.serviceInstalledRunning "apache2"
 		& File.hasPrivContent "/etc/ssl/certs/web.pem"