Fix an error

diff --git a/beacon.el b/beacon.el
index dd1976d5a8cc22d4b05e2e9f1af28143215b2f4c..a893a6b9f8763864cd45fd55c4f6ccbdfafcab87 100644 (file)
--- a/beacon.el
+++ b/beacon.el
@@ -198,6 +198,7 @@ Only returns `beacon-size' elements."
   "Return non-nil if latest point movement is > DELTA.
 If DELTA is nil, return nil."
   (and delta
+       (markerp beacon--previous-place)
        (equal (marker-buffer beacon--previous-place)
               (current-buffer))
        (> (abs (- (point) beacon--previous-place))