diff --git a/local-backup b/local-backup
index e10ebf7..11ec7c0 100755
--- a/local-backup
+++ b/local-backup
@@ -4,7 +4,7 @@ set -o errexit -o nounset -o pipefail
 
 remote=root@matrix.grapheneos.org
 
-timestamp=$(date -u +%Y-%m-%dT%H:%m:%SZ)
+timestamp=$(date -u +%Y-%m-%dT%H:%M:%SZ)
 ssh $remote "rm -rf local-backup"
 ssh $remote "mkdir local-backup"
 
diff --git a/remote-backup b/remote-backup
index 2e610aa..8e3dee9 100755
--- a/remote-backup
+++ b/remote-backup
@@ -2,7 +2,7 @@
 
 set -o errexit -o nounset -o pipefail
 
-timestamp=$(date -u +%Y-%m-%dT%H:%m:%SZ)
+timestamp=$(date -u +%Y-%m-%dT%H:%M:%SZ)
 rm -rf remote-backup
 mkdir remote-backup