diff --git a/examples/Gravity/channel.h b/examples/Gravity/channel.h
index 8e70d61..23c1f51 100644
--- a/examples/Gravity/channel.h
+++ b/examples/Gravity/channel.h
@@ -66,6 +66,9 @@ class Channel {
         cvmod_offset = base_offset;
         cvmod_swing = base_swing;
 
+        cv1_dest = CV_DEST_NONE;
+        cv2_dest = CV_DEST_NONE;
+
         pattern.Init(DEFAULT_PATTERN);
 
         // Calcule the clock mod pulses on init.