diff --git a/src/models/mimo2.cpp b/src/models/mimo2.cpp
index 8772319f4..a466984af 100644
--- a/src/models/mimo2.cpp
+++ b/src/models/mimo2.cpp
@@ -9,7 +9,7 @@ void llama_model_mimo2::load_arch_hparams(llama_model_loader & ml) {
     ml.get_key(LLM_KV_ATTENTION_SLIDING_WINDOW,   hparams.n_swa);
     ml.get_key(LLM_KV_ROPE_FREQ_BASE_SWA,         hparams.rope_freq_base_train_swa, false);
 
-    ml.get_key_or_arr(LLM_KV_ATTENTION_SLIDING_WINDOW_PATTERN, hparams.is_swa_impl, hparams.n_layer());
+    ml.get_arr(LLM_KV_ATTENTION_SLIDING_WINDOW_PATTERN, hparams.is_swa_impl);
 
     float value_scale = 0.0f;
     if (ml.get_key(LLM_KV_ATTENTION_VALUE_SCALE, value_scale, false) && value_scale != 1.0f) {