diff --git a/tests/hwsim/test_ap_tdls.py b/tests/hwsim/test_ap_tdls.py
index bba2bacf3..315b2cc9b 100644
--- a/tests/hwsim/test_ap_tdls.py
+++ b/tests/hwsim/test_ap_tdls.py
@@ -427,7 +427,7 @@ def test_ap_open_tdls_vht80(dev, apdev):
                                    stdout=subprocess.PIPE)
             res = cmd.stdout.read()
             cmd.stdout.close()
-            logger.info("Station dump on dev[%d]:\n%s" % (i, res))
+            logger.info("Station dump on dev[%d]:\n%s" % (i, res.decode()))
     except Exception as e:
         if isinstance(e, Exception) and str(e) == "AP startup failed":
             if not vht_supported():
@@ -471,7 +471,7 @@ def test_ap_open_tdls_vht80plus80(dev, apdev):
                                    stdout=subprocess.PIPE)
             res = cmd.stdout.read()
             cmd.stdout.close()
-            logger.info("Station dump on dev[%d]:\n%s" % (i, res))
+            logger.info("Station dump on dev[%d]:\n%s" % (i, res.decode()))
     except Exception as e:
         if isinstance(e, Exception) and str(e) == "AP startup failed":
             if not vht_supported():
@@ -515,7 +515,7 @@ def test_ap_open_tdls_vht160(dev, apdev):
                                    stdout=subprocess.PIPE)
             res = cmd.stdout.read()
             cmd.stdout.close()
-            logger.info("Station dump on dev[%d]:\n%s" % (i, res))
+            logger.info("Station dump on dev[%d]:\n%s" % (i, res.decode()))
     except Exception as e:
         if isinstance(e, Exception) and str(e) == "AP startup failed":
             if not vht_supported():