diff --git a/lib/vagrant/action/builtin/box_add.rb b/lib/vagrant/action/builtin/box_add.rb
index 1a53918a9..07ac06388 100644
--- a/lib/vagrant/action/builtin/box_add.rb
+++ b/lib/vagrant/action/builtin/box_add.rb
@@ -543,6 +543,8 @@ module Vagrant
           @logger.info("Expected checksum: #{checksum}")
 
           actual = FileChecksum.new(path, checksum_type).checksum
+          actual.gsub!(/\s+/, '')
+          checksum.gsub!(/\s+/, '')
           @logger.info("Actual checksum: #{actual}")
           if actual.casecmp(checksum) != 0
             raise Errors::BoxChecksumMismatch,