diff --git a/optimum/exporters/openvino/utils.py b/optimum/exporters/openvino/utils.py
index 9b8747243..75106fc2b 100644
--- a/optimum/exporters/openvino/utils.py
+++ b/optimum/exporters/openvino/utils.py
@@ -103,7 +103,7 @@ def _get_input_info(
                     symbol = name_to_symbol[dim_name]
                 else:
                     symbol = Symbol()
-                    name_to_symbol[name] = symbol
+                    name_to_symbol[dim_name] = symbol
                 dim = Dimension(-1)
                 dim.set_symbol(symbol)
                 shape[idx] = dim
diff --git a/optimum/intel/openvino/modeling_decoder.py b/optimum/intel/openvino/modeling_decoder.py
index 733f5a411..56b7a1c5a 100644
--- a/optimum/intel/openvino/modeling_decoder.py
+++ b/optimum/intel/openvino/modeling_decoder.py
@@ -16,7 +16,7 @@
 import os
 from pathlib import Path
 from tempfile import TemporaryDirectory
-from typing import TYPE_CHECKING, Callable, Dict, List, Optional, Tuple, Union
+from typing import TYPE_CHECKING, Any, Callable, Dict, List, Optional, Tuple, Union
 
 import numpy as np
 import openvino
@@ -31,7 +31,7 @@
 from transformers.generation.logits_process import LogitsProcessorList
 from transformers.generation.stopping_criteria import StoppingCriteriaList
 from transformers.generation.utils import GenerateOutput, GenerationMode
-from transformers.modeling_outputs import CausalLMOutputWithPast
+from transformers.modeling_outputs import CausalLMOutputWithPast, ModelOutput
 
 from optimum.utils.normalized_config import NormalizedConfigManager
 
@@ -504,8 +504,8 @@ def prepare_inputs(
             else:
                 position_ids = np.cumsum(attention_mask, axis=1) - 1
                 position_ids[attention_mask == 0] = 1
-                if past_key_values:
-                    position_ids = position_ids[:, -input_ids.shape[1] :]
+            if past_key_values:
+                position_ids = position_ids[:, -input_ids.shape[1] :]
 
             inputs["position_ids"] = position_ids
 
@@ -604,6 +604,24 @@ def prepare_inputs_for_generation(self, input_ids, past_key_values=None, **kwarg
 
         return model_inputs
 
+    def _update_model_kwargs_for_generation(
+        self,
+        outputs: ModelOutput,
+        model_kwargs: Dict[str, Any],
+        is_encoder_decoder: bool = False,
+        **kwargs,
+    ) -> Dict[str, Any]:
+        model_kwargs = super()._update_model_kwargs_for_generation(
+            outputs=outputs, model_kwargs=model_kwargs, is_encoder_decoder=is_encoder_decoder, **kwargs
+        )
+
+        if "position_ids" in model_kwargs:
+            position_ids = model_kwargs["position_ids"]
+            new_position_id = position_ids[..., -1:].clone()
+            new_position_id += 1
+            model_kwargs["position_ids"] = torch.cat([position_ids, new_position_id], dim=-1)
+        return model_kwargs
+
     def _expand_outputs_for_generation(self, indicies, logits: torch.Tensor, past_key_values: Tuple):
         batch_size = logits.shape[0]
         if indicies.shape[0] != 1: