diff --git a/lib/vagrant/ui.rb b/lib/vagrant/ui.rb
index bcbf16146..3fd6e3a01 100644
--- a/lib/vagrant/ui.rb
+++ b/lib/vagrant/ui.rb
@@ -78,9 +78,13 @@ module Vagrant
       # to the UI. Send `clear_line` to clear the line to show
       # a continuous progress meter.
       def report_progress(progress, total, show_parts=true)
-        percent = (progress.to_f / total.to_f) * 100
-        line    = "Progress: #{percent.to_i}%"
-        line   << " (#{progress} / #{total})" if show_parts
+        if total and not total == 0
+          percent = (progress.to_f / total.to_f) * 100
+          line    = "Progress: #{percent.to_i}%"
+          line   << " (#{progress} / #{total})" if show_parts
+        else
+          line    = "Progress: #{progress}"
+        end
 
         info(line, :new_line => false)
       end