diff --git a/units/systemd-readahead-collect.service.in b/units/systemd-readahead-collect.service.in
index 1a66f9fa6ff..56ba54f0b3a 100644
--- a/units/systemd-readahead-collect.service.in
+++ b/units/systemd-readahead-collect.service.in
@@ -16,6 +16,7 @@ Before=sysinit.target shutdown.target
 Type=notify
 ExecStart=@rootlibexecdir@/systemd-readahead-collect
 RemainAfterExit=yes
+StandardOutput=null
 
 [Install]
 WantedBy=default.target
diff --git a/units/systemd-readahead-replay.service.in b/units/systemd-readahead-replay.service.in
index 5cc6defd9bf..7c82e408e21 100644
--- a/units/systemd-readahead-replay.service.in
+++ b/units/systemd-readahead-replay.service.in
@@ -16,6 +16,7 @@ ConditionPathExists=/.readahead
 Type=notify
 ExecStart=@rootlibexecdir@/systemd-readahead-replay
 RemainAfterExit=yes
+StandardOutput=null
 
 [Install]
 WantedBy=default.target