diff --git a/unit-files/backup-u@.service b/unit-files/backup-u@.service
index 50042033bc1fa712ad114235cf0b0a9b17cfca75..a0767c468c24bdd8b46322cc313dcfba20e3821e 100644
--- a/unit-files/backup-u@.service
+++ b/unit-files/backup-u@.service
@@ -6,7 +6,6 @@ Type=oneshot
 TimeoutStartSec=0
 WorkingDirectory=/data/domains/%i/
 EnvironmentFile=/etc/environment
-ExecStartPre=/bin/bash -euxc 'sleep `shuf -i 0-400 -n 1`'
 ExecStartPre=/bin/bash -euxc '/data/domains/%i/BACKUP'
 ExecStart=/bin/bash -euxc ' \
   /bin/docker run \
diff --git a/unit-files/backup-u@.timer b/unit-files/backup-u@.timer
index 33a4c636de8f587c837df925bd527ab26af0fa88..ee948a21609c33b34c8bd7575cc650e91d274a60 100644
--- a/unit-files/backup-u@.timer
+++ b/unit-files/backup-u@.timer
@@ -7,4 +7,5 @@ BindsTo=universal@%i.service
 [Timer]
 OnActiveSec=20
 OnUnitActiveSec=60min
+AccuracySec=50min
 
diff --git a/unit-files/backup@.service b/unit-files/backup@.service
index e90a065b93bfcfd258025fac8a12919a32b4572f..1ded41f499021585f4eaa29f39edeec7590e511a 100644
--- a/unit-files/backup@.service
+++ b/unit-files/backup@.service
@@ -8,7 +8,6 @@ EnvironmentFile=/etc/environment
 ExecStartPre=/usr/bin/docker run --rm -v /opt/bin:/opt/bin ibuildthecloud/systemd-docker
 ExecStartPre=-/usr/bin/docker kill mysqldump-%i
 ExecStartPre=-/usr/bin/docker rm mysqldump-%i
-ExecStartPre=/bin/bash -euxc 'sleep `shuf -i 0-400 -n 1`'
 ExecStartPre=/bin/bash -euxc '\
   if [ -d /data/domains/%i/mysql ]; then \
     echo "Backing up mysql databases for %i"; \
diff --git a/unit-files/backup@.timer b/unit-files/backup@.timer
index 3bf21b3d5cb17f3c49bda424ecda1c803a8174c9..cdd24c3e590c123851758bf74f767478a6ab2f33 100644
--- a/unit-files/backup@.timer
+++ b/unit-files/backup@.timer
@@ -7,4 +7,5 @@ BindsTo=web@%i.service
 [Timer]
 OnActiveSec=20
 OnUnitActiveSec=60min
+AccuracySec=50min