diff --git a/scripts/tests/run_java_test.py b/scripts/tests/run_java_test.py
index bb00215..8f30de2 100755
--- a/scripts/tests/run_java_test.py
+++ b/scripts/tests/run_java_test.py
@@ -55,7 +55,7 @@
             raise Exception("Failed to remove /tmp/chip* for factory reset.")
 
         print("Contents of test directory: %s" % os.getcwd())
-        print(subprocess.check_output(["ls -l"], shell=True).decode('us-ascii'))
+        print(subprocess.check_output(["ls -l"], shell=True).decode('utf-8'))
 
         # Remove native app KVS if that was used
         kvs_match = re.search(r"--KVS (?P<kvs_path>[^ ]+)", app_args)
diff --git a/scripts/tests/run_python_test.py b/scripts/tests/run_python_test.py
index 87f6044c..c607a5d 100755
--- a/scripts/tests/run_python_test.py
+++ b/scripts/tests/run_python_test.py
@@ -92,7 +92,7 @@
             raise Exception("Failed to remove /tmp/chip* for factory reset.")
 
         print("Contents of test directory: %s" % os.getcwd())
-        print(subprocess.check_output(["ls -l"], shell=True).decode('us-ascii'))
+        print(subprocess.check_output(["ls -l"], shell=True).decode('utf-8'))
 
         # Remove native app KVS if that was used
         kvs_match = re.search(r"--KVS (?P<kvs_path>[^ ]+)", app_args)