diff --git a/dist/clouduploader.rb b/dist/clouduploader.rb
index 31bdbd9eebd..9719c963a27 100644
--- a/dist/clouduploader.rb
+++ b/dist/clouduploader.rb
@@ -72,7 +72,7 @@ def upload_image_to_ec2(image, data, jobid)
   end
   command << image
 
-  Open3.popen2e(command) do |_stdin, stdout_stderr, _wait_thr|
+  Open3.popen2e(command) do |_stdin, stdout_stderr, wait_thr|
     Signal.trap("TERM") {
       # We just omit the SIGTERM because otherwise we would not get logs from ec2uploadimg
       STDOUT.write("Received abort signal, waiting for ec2uploadimg to properly clean up.\n")