diff --git a/backend/posix/posix.go b/backend/posix/posix.go
index fcd8a0c2..bff80735 100644
--- a/backend/posix/posix.go
+++ b/backend/posix/posix.go
@@ -4067,6 +4067,11 @@ func (p *Posix) ListBucketsAndOwners(ctx context.Context) (buckets []s3response.
 			continue
 		}
 
+		if containsprefix(entry.Name(), p.skipprefix) {
+			// skip directories that match the skip prefix
+			continue
+		}
+
 		fi, err := entry.Info()
 		if err != nil {
 			continue