diff --git a/libqmpbackup/vm.py b/libqmpbackup/vm.py
index 8832259..8b520d2 100644
--- a/libqmpbackup/vm.py
+++ b/libqmpbackup/vm.py
@@ -66,6 +66,7 @@ def get_block_devices(blockinfo, argv, excluded_disks, included_disks, uuid):
             for bmap in bitmaps:
                 if uuid in bmap["name"]:
                     has_bitmap = True
+                    break
         else:
             if len(bitmaps) > 0:
                 has_bitmap = True