diff --git a/mlperf_logging/compliance_checker/training_6.0.0/closed_deepseekv3_671b.yaml b/mlperf_logging/compliance_checker/training_6.0.0/closed_deepseekv3_671b.yaml
index 915d4fb..3862e1d 100644
--- a/mlperf_logging/compliance_checker/training_6.0.0/closed_deepseekv3_671b.yaml
+++ b/mlperf_logging/compliance_checker/training_6.0.0/closed_deepseekv3_671b.yaml
@@ -69,6 +69,11 @@
     REQ:   EXACTLY_ONE
     CHECK: " v['value'] == 1.0 "
 
+- KEY:
+    NAME:  moe_aux_loss_coeff
+    REQ:   EXACTLY_ONE
+    CHECK: " v['value'] == 0.01 "
+
 - KEY:
     NAME:  gradient_accumulation_steps
     REQ:   EXACTLY_ONE
diff --git a/mlperf_logging/compliance_checker/training_6.0.0/open_deepseekv3_671b.yaml b/mlperf_logging/compliance_checker/training_6.0.0/open_deepseekv3_671b.yaml
index d6de5fa..b50437b 100644
--- a/mlperf_logging/compliance_checker/training_6.0.0/open_deepseekv3_671b.yaml
+++ b/mlperf_logging/compliance_checker/training_6.0.0/open_deepseekv3_671b.yaml
@@ -55,6 +55,10 @@
     NAME:  opt_gradient_clip_norm
     REQ:   EXACTLY_ONE
 
+- KEY:
+    NAME:  moe_aux_loss_coeff
+    REQ:   EXACTLY_ONE
+
 - KEY:
     NAME:  gradient_accumulation_steps
     REQ:   EXACTLY_ONE
diff --git a/mlperf_logging/mllog/constants.py b/mlperf_logging/mllog/constants.py
index 002a2a1..afcb8f1 100644
--- a/mlperf_logging/mllog/constants.py
+++ b/mlperf_logging/mllog/constants.py
@@ -177,6 +177,7 @@
 START_WARMUP_STEP = "start_warmup_step"
 INIT_CHECKPOINT_STEP = "init_checkpoint_step"
 LORA_ALPHA = "lora_alpha"
+MOE_AUX_LOSS_COEFF = "moe_aux_loss_coeff"
 # Log keys - misc.
 BBOX = "bbox"
 SEGM = "segm"