diff --git a/specs/XI2proto.txt b/specs/XI2proto.txt
index 070f523..88e6292 100644
--- a/specs/XI2proto.txt
+++ b/specs/XI2proto.txt
@@ -933,7 +933,7 @@ XIQueryDevice
                   length:               CARD16
                   sourceid:             CARD16
                   mode:                 TOUCHMODE
-                  num_touches:          CARD16 }
+                  num_touches:          CARD8 }
 
     TOUCHMODE { DirectTouch, DependentTouch }