diff --git a/config/nrfconnect/chip-module/Kconfig.defaults b/config/nrfconnect/chip-module/Kconfig.defaults
index 484135bb62..2b7d7d3213 100644
--- a/config/nrfconnect/chip-module/Kconfig.defaults
+++ b/config/nrfconnect/chip-module/Kconfig.defaults
@@ -271,7 +271,7 @@ config OPENTHREAD_THREAD_STACK_SIZE
 config OPENTHREAD_DEFAULT_TX_POWER
     default 20 if MPSL_FEM
     default 3 if SOC_SERIES_NRF53X
-    default 8 if SOC_SERIES_NRF52X
+    default 8 if SOC_SERIES_NRF52X || SOC_SERIES_NRF54LX
 
 endif # NET_L2_OPENTHREAD