diff --git a/src/llama.cpp b/src/llama.cpp
index 52c8bff61..266a5576a 100644
--- a/src/llama.cpp
+++ b/src/llama.cpp
@@ -5055,7 +5055,7 @@ static void llm_load_hparams(
                 ml.get_key(LLM_KV_SSM_INNER_SIZE,     hparams.ssm_d_inner);
                 ml.get_key(LLM_KV_SSM_STATE_SIZE,     hparams.ssm_d_state);
                 ml.get_key(LLM_KV_SSM_TIME_STEP_RANK, hparams.ssm_dt_rank);
-                ml.get_key(LLM_KV_SSM_B_DT_RMS, hparams.ssm_b_dt_rms);
+                ml.get_key(LLM_KV_SSM_B_DT_RMS, hparams.ssm_b_dt_rms, false);
 
                 ml.get_key(LLM_KV_ATTENTION_LAYERNORM_RMS_EPS, hparams.f_norm_rms_eps);