diff --git a/msg.go b/msg.go
index cd64c80..06017b6 100644
--- a/msg.go
+++ b/msg.go
@@ -340,9 +340,19 @@ func UnzipMessages(z []byte) error {
 			if err != nil {
 				return err
 			}
-			bkp := DataBackup{}
-			err = json.NewDecoder(rc).Decode(bkp)
+			data, err := ioutil.ReadAll(rc)
+			logOnError(err, "UnzipMessages : ReadAll")
+			if err != nil {
+				return err
+			}
+			log.Printf("UnzipMessages : %d uncompressed bytes.\n", len(data))
 			rc.Close()
+			bkp := DataBackup{}
+			err = json.Unmarshal(data, &bkp)
+			logOnError(err, "UnzipMessages : Unmarshal")
+			if err != nil {
+				return err
+			}
 			log.Printf("UnzipMessages : %d messages.\n", len(bkp.Messages))
 			return nil
 		}