diff --git a/brother_ql/raster.py b/brother_ql/raster.py
index 8365276..dd0e26c 100644
--- a/brother_ql/raster.py
+++ b/brother_ql/raster.py
@@ -120,8 +120,8 @@ class BrotherQLRaster(object):
         self.data += bytes([valid_flags])
         vals = [self._mtype, self._mwidth, self._mlength]
         self.data += b''.join(b'\x00' if val is None else val for val in vals)
-        self.data += struct.pack('<L', rnumber)
-        self.data += bytes([self.page_number == 0])
+        self.data += struct.pack('<L', rnumber-1)
+        self.data += bytes([0 if self.page_number == 0 else 1])
         self.data += b'\x00'
         # INFO:  media/quality (1B 69 7A) --> found! (payload: 8E 0A 3E 00 D2 00 00 00 00 00)