diff --git a/test/support/test_case.rb b/test/support/test_case.rb
index 8ae965372..9797975f2 100644
--- a/test/support/test_case.rb
+++ b/test/support/test_case.rb
@@ -173,6 +173,7 @@ def setup_remote_debuggee(cmd)
 
       Timeout.timeout(TIMEOUT_SEC) do
         line = remote_info.r.gets
+        line = line.scrub if line
         remote_info.debuggee_backlog << line
 
         # wait for two lines (order is unstable)