diff --git a/bin/r b/bin/r
index 26c0ad7..c9c2ba9 100755
--- a/bin/r
+++ b/bin/r
@@ -1,5 +1,10 @@
 #!/usr/bin/bash
 
+usage() {
+  echo "Usage: $(basename $0) [-d] <host>" >&2
+  echo "  -d    Remove host key from known_hosts before connecting" >&2
+}
+
 DEL=""
 
 deletehost() {
diff --git a/config.yml b/config.yml
index 6a1ade6..7191968 100644
--- a/config.yml
+++ b/config.yml
@@ -45,7 +45,7 @@
         dest: /etc/sudoers.d/sudogroup
         owner: root
         group: root
-        mode: '0644'
+        mode: '0440'
 
     - name: Deploy gitconfig
       template:
diff --git a/postgres.yml b/postgres.yml
index e821e79..ccdcd92 100644
--- a/postgres.yml
+++ b/postgres.yml
@@ -31,7 +31,7 @@
 
     - name: Setup Postgres backup cron job
       ansible.builtin.cron:
-        name: "borgmatic"
+        name: "pg-backup"
         minute: 30
         hour: 23
         job: /usr/local/bin/pg-backup