diff --git a/mbed_lstools/lstools_base.py b/mbed_lstools/lstools_base.py
index a4007f6..b8e97ef 100644
--- a/mbed_lstools/lstools_base.py
+++ b/mbed_lstools/lstools_base.py
@@ -157,7 +157,7 @@ def __init__(self):
         "4500": "DELTA_DFCM_NNN40",
         "5000": "ARM_MPS2",
         "5001": "ARM_MPS2_M0",
-        "5003": "ARM_MPS2_M0P",
+        "5003": "ARM_BEETLE_SOC",
         "5005": "ARM_MPS2_M0DS",
         "5007": "ARM_MPS2_M1",
         "5009": "ARM_MPS2_M3",