diff --git a/staffeln/conductor/backup.py b/staffeln/conductor/backup.py
index a58a980..ddfffb3 100755
--- a/staffeln/conductor/backup.py
+++ b/staffeln/conductor/backup.py
@@ -309,7 +309,7 @@
             backups = self.get_backups(
                 filters={
                     "volume_id__eq": volume_id,
-                    "created_at__ge": threshold_strtime.astimezone(),
+                    "created_at__gt": threshold_strtime.astimezone(),
                 }
             )
             if backups:
diff --git a/staffeln/conf/conductor.py b/staffeln/conf/conductor.py
index df5118a..fbd9f70 100755
--- a/staffeln/conf/conductor.py
+++ b/staffeln/conf/conductor.py
@@ -28,7 +28,7 @@
         default=30,
         min=0,
         help=_(
-            "The time of minum guaranteed interval between Staffeln "
+            "The time of minimum guaranteed interval between Staffeln "
             "created backups, the unit is one minute. set to 0 if don't "
             "need to enable this feature."
         ),