diff --git a/scripts/run_ctest.py b/scripts/run_ctest.py
index c72d0f7..3e7abfc 100755
--- a/scripts/run_ctest.py
+++ b/scripts/run_ctest.py
@@ -1,7 +1,7 @@
 #!/usr/bin/env python3
 
 #
-# Copyright (c) 2021 Arm Limited. All rights reserved.
+# Copyright (c) 2021-2022 Arm Limited. All rights reserved.
 #
 # SPDX-License-Identifier: Apache-2.0
 #
@@ -45,15 +45,22 @@
     return subprocess.check_output(args, **kwargs)
 
 def run_corstone_300(args):
+    if not args.arch or args.arch == 'ethos-u55':
+        fvp = 'FVP_Corstone_SSE-300_Ethos-U55'
+    elif args.arch == 'ethos-u65':
+        fvp = 'FVP_Corstone_SSE-300_Ethos-U65'
+    else:
+        raise 'Unsupported NPU arch'
+
     # Verify supported FVP version
-    version = subprocess.check_output(['FVP_Corstone_SSE-300_Ethos-U55', '--version']).decode()
+    version = subprocess.check_output([fvp, '--version']).decode()
     supported_version = ['11.13', '11.14', '11.15', '11.16']
 
     if not [s for s in supported_version if s in version]:
         raise Exception("Incorrect FVP version. Supported versions are '{}'.".format(supported_version))
 
     # FVP executable
-    cmd = ['FVP_Corstone_SSE-300_Ethos-U55']
+    cmd = [fvp]
 
     # NPU configuration
     cmd += ['-C', 'ethosu.num_macs=' + str(args.macs)]
@@ -86,7 +93,7 @@
 if __name__ == '__main__':
     parser = argparse.ArgumentParser(description='Run a test with given test command and test binary.')
     parser.add_argument('-t', '--target', choices=['corstone-300'], required=True, help='FVP target.')
-    parser.add_argument('-a', '--arch', choices=['ethos-u55'], default='ethos-u55', help='NPU architecture.')
+    parser.add_argument('-a', '--arch', choices=['ethos-u55', 'ethos-u65'], help='NPU architecture.')
     parser.add_argument('-m', '--macs', type=int, choices=[32, 64, 128, 256], default=128, help='NPU number of MACs.')
     parser.add_argument('args', nargs='+', help='Arguments.')
     args = parser.parse_args()