diff --git a/application.py b/application.py
index a01decf..11cb700 100755
--- a/application.py
+++ b/application.py
@@ -883,7 +883,7 @@ class Application(object):
                 self.highlight_range(slot, p1, p2, fg, bg)
 
         #self.highlight_range(slot, Point(13, 8), Point(29, 8), 'black', 'magenta')
-        if not self.highlighted_ranges and self.highlight_mark:
+        if (self.active_slot == i and not self.highlighted_ranges and self.highlight_mark):
             fg, bg = 'black', 'cyan'
             cursor = w.logical_cursor()
             mark   = w.mark