diff --git a/src/infuse_iot/util/soc/nrf.py b/src/infuse_iot/util/soc/nrf.py
index 5b841ad..ff79171 100644
--- a/src/infuse_iot/util/soc/nrf.py
+++ b/src/infuse_iot/util/soc/nrf.py
@@ -63,6 +63,8 @@ def soc(device_info):
             return "nRF54L10"
         elif version.startswith("NRF54L05"):
             return "nRF54L05"
+        elif version.startswith("NRF54LM20"):
+            return "nRF54LM20"
         else:
             raise NotImplementedError(f"Unhandled device {version}")