diff --git a/pool/pool.go b/pool/pool.go
index 36d6340..41e66ad 100644
--- a/pool/pool.go
+++ b/pool/pool.go
@@ -1085,7 +1085,7 @@ func (c *clientWrapper) objectSearch(ctx context.Context, prm PrmObjectSearch) (
 		return ResObjectSearch{}, fmt.Errorf("init object searching on client: %w", err)
 	}
 
-	return ResObjectSearch{r: res}, nil
+	return ResObjectSearch{r: res, incErrorRate: c.incErrorRate}, nil
 }
 
 // sessionCreate invokes sdkClient.SessionCreate parse response status to error and return result as is.
@@ -2708,7 +2708,8 @@ func (p *Pool) ObjectRange(ctx context.Context, prm PrmObjectRange) (ResObjectRa
 //
 // Must be initialized using Pool.SearchObjects, any other usage is unsafe.
 type ResObjectSearch struct {
-	r *sdkClient.ObjectListReader
+	r            *sdkClient.ObjectListReader
+	incErrorRate func()
 }
 
 // Read reads another list of the object identifiers.
@@ -2720,6 +2721,11 @@ func (x *ResObjectSearch) Read(buf []oid.ID) (int, error) {
 			return n, io.EOF
 		}
 
+		switch err.(type) {
+		case *apistatus.NodeUnderMaintenance:
+			x.incErrorRate()
+		}
+
 		return n, err
 	}