diff --git a/devops-service/lib/executors/server_executor.rb b/devops-service/lib/executors/server_executor.rb
index 9e6318b..8996f52 100644
--- a/devops-service/lib/executors/server_executor.rb
+++ b/devops-service/lib/executors/server_executor.rb
@@ -115,7 +115,7 @@ module Devops
         @out.flush
         i = 0
         cmd = "ssh -i #{cert_path} -q #{@server.remote_user}@#{ip} 'exit'"
-        out << "Test command: '#{cmd}'\n"
+        @out << "Test command: '#{cmd}'\n"
         cmd << " 2>&1"
         begin
           sleep(5)