diff --git a/Library/Contributions/cmd/brew-test-bot.rb b/Library/Contributions/cmd/brew-test-bot.rb
index b58695a7e0..3cd14e1342 100755
--- a/Library/Contributions/cmd/brew-test-bot.rb
+++ b/Library/Contributions/cmd/brew-test-bot.rb
@@ -76,7 +76,7 @@ class Step
     puts_command
 
     start_time = Time.now
-    run_command = "#{@command} &>#{log_file_path}"
+    run_command = "#{@command} &>'#{log_file_path}'"
     if run_command.start_with? 'git '
       Dir.chdir @repository do
         `#{run_command}`