diff --git a/tools/preview.rb b/tools/preview.rb
index 387dc081b..8bcf88b1c 100755
--- a/tools/preview.rb
+++ b/tools/preview.rb
@@ -24,7 +24,11 @@
 history = []
 until files.empty?
   file = files.shift
-  print "[#{File.basename file, '.*'}] " if preview
+  if preview
+    puts `tput cup 0 0`       # goto top of screen
+    print "[#{File.basename file, '.*'}] "
+    puts `tput el`            # clear to eol
+  end
   begin
     colors = {}
     root = REXML::Document.new(File.read file).root