diff --git a/lib/kiss/kiss_serial.rb b/lib/kiss/kiss_serial.rb
index 4a3e44c659f00089b51a98e7e6794af89cb4fdb8..dc2ffe78cdae3cace9503cee998f4bb9ec5613dc 100644
--- a/lib/kiss/kiss_serial.rb
+++ b/lib/kiss/kiss_serial.rb
@@ -58,7 +58,7 @@ module Kiss
             if mode_init
                 puts 'mode_init:'
                 p mode_init
-                @serial.write(mode_init)
+                write_interface(mode_init)
                 @exit_kiss = true
             else
                 @exit_kiss = false