diff --git a/.builder/actions/tls_server_setup.py b/.builder/actions/tls_server_setup.py
index deea3a9fa..256071198 100644
--- a/.builder/actions/tls_server_setup.py
+++ b/.builder/actions/tls_server_setup.py
@@ -59,10 +59,11 @@ def run(self, env):
         def close_tls_server():
             print("Terminating openssl TLS server")
             p.terminate()
-            print("=== stdout:")
-            for c in iter(lambda: p.stdout.read(1), b""):
-                sys.stdout.buffer.write(c)
-            print("=== stderr:")
-            for c in iter(lambda: p.stderr.read(1), b""):
-                sys.stdout.buffer.write(c)
-            print("=== now bye")
+            out, err = p.communicate()
+            print("=== stdout:\n{}".format(out))
+            # for c in iter(lambda: p.stdout.read(1), b""):
+            # sys.stdout.buffer.write(c)
+            print("=== stderr:\n{}".format(err))
+            # for c in iter(lambda: p.stderr.read(1), b""):
+            # sys.stdout.buffer.write(c)
+            print("====== bye")