diff --git a/python/llm/src/ipex_llm/transformers/models/mistral.py b/python/llm/src/ipex_llm/transformers/models/mistral.py
index 5cba7f0e..9a7d5c0d 100644
--- a/python/llm/src/ipex_llm/transformers/models/mistral.py
+++ b/python/llm/src/ipex_llm/transformers/models/mistral.py
@@ -483,7 +483,7 @@ def mistral_attention_forward_original(
                                                      is_causal=True)
         attn_weights = None
         attn_output = attn_output.transpose(1, 2).contiguous()
-        attn_output = attn_output.reshape(bsz, q_len, hidden_size)
+        attn_output = attn_output.reshape(bsz, q_len, self.hidden_size)
     elif use_esimd_sdp(q_len, key_states.shape[2], self.head_dim, query_states):
         import linear_fp16_esimd
         attn_output = linear_fp16_esimd.sdp_forward(query_states,
@@ -492,7 +492,7 @@ def mistral_attention_forward_original(
         attn_output = attn_output.view(query_states.shape)
         attn_weights = None
         attn_output = attn_output.transpose(1, 2).contiguous()
-        attn_output = attn_output.reshape(bsz, q_len, hidden_size)
+        attn_output = attn_output.reshape(bsz, q_len, self.hidden_size)
     else:
         attn_output, attn_weights = compute_attn_outputs_weights(query_states,
                                                                  key_states,
@@ -855,7 +855,7 @@ def mistral_attention_forward_4_36_original(
                                                      is_causal=True)
         attn_weights = None
         attn_output = attn_output.transpose(1, 2).contiguous()
-        attn_output = attn_output.reshape(bsz, q_len, hidden_size)
+        attn_output = attn_output.reshape(bsz, q_len, self.hidden_size)
     else:
         attn_output, attn_weights = compute_attn_outputs_weights(query_states,
                                                                  key_states,