diff --git a/builder/kojid.service b/builder/kojid.service
index 32131920..1218fde0 100644
--- a/builder/kojid.service
+++ b/builder/kojid.service
@@ -12,6 +12,7 @@ ExecStart=/usr/sbin/kojid \
 ExecReload=/bin/kill -USR1 $MAINPID
 Restart=on-failure
 RestartSec=60s
+PrivateTmp=true
 
 [Install]
 WantedBy=multi-user.target
diff --git a/util/kojira.service b/util/kojira.service
index 8d468cfe..b20d590a 100644
--- a/util/kojira.service
+++ b/util/kojira.service
@@ -11,6 +11,7 @@ ExecStart=/usr/sbin/kojira \
        --verbose
 Restart=on-failure
 RestartSec=60s
+PrivateTmp=true
 
 [Install]
 WantedBy=multi-user.target