diff --git a/src/diffusers/pipelines/cogvideo/pipeline_cogvideox.py b/src/diffusers/pipelines/cogvideo/pipeline_cogvideox.py
index b883e10a6732..830969d06a9c 100644
--- a/src/diffusers/pipelines/cogvideo/pipeline_cogvideox.py
+++ b/src/diffusers/pipelines/cogvideo/pipeline_cogvideox.py
@@ -736,7 +736,7 @@ def __call__(
                 # perform guidance
                 if use_dynamic_cfg:
                     self._guidance_scale = 1 + guidance_scale * (
-                        (1 - math.cos(math.pi * ((num_inference_steps - t.item()) / num_inference_steps) ** 5.0)) / 2
+                        (1 - math.cos(math.pi * ((num_inference_steps - i) / num_inference_steps) ** 5.0)) / 2
                     )
                 if do_classifier_free_guidance:
                     noise_pred_uncond, noise_pred_text = noise_pred.chunk(2)
diff --git a/src/diffusers/pipelines/cogvideo/pipeline_cogvideox_fun_control.py b/src/diffusers/pipelines/cogvideo/pipeline_cogvideox_fun_control.py
index de5b969a9adc..d542d4a68fc8 100644
--- a/src/diffusers/pipelines/cogvideo/pipeline_cogvideox_fun_control.py
+++ b/src/diffusers/pipelines/cogvideo/pipeline_cogvideox_fun_control.py
@@ -802,7 +802,7 @@ def __call__(
                 # perform guidance
                 if use_dynamic_cfg:
                     self._guidance_scale = 1 + guidance_scale * (
-                        (1 - math.cos(math.pi * ((num_inference_steps - t.item()) / num_inference_steps) ** 5.0)) / 2
+                        (1 - math.cos(math.pi * ((num_inference_steps - i) / num_inference_steps) ** 5.0)) / 2
                     )
                 if do_classifier_free_guidance:
                     noise_pred_uncond, noise_pred_text = noise_pred.chunk(2)
diff --git a/src/diffusers/pipelines/cogvideo/pipeline_cogvideox_image2video.py b/src/diffusers/pipelines/cogvideo/pipeline_cogvideox_image2video.py
index 9687d63bc7bf..acd630b751aa 100644
--- a/src/diffusers/pipelines/cogvideo/pipeline_cogvideox_image2video.py
+++ b/src/diffusers/pipelines/cogvideo/pipeline_cogvideox_image2video.py
@@ -846,7 +846,7 @@ def __call__(
                 # perform guidance
                 if use_dynamic_cfg:
                     self._guidance_scale = 1 + guidance_scale * (
-                        (1 - math.cos(math.pi * ((num_inference_steps - t.item()) / num_inference_steps) ** 5.0)) / 2
+                        (1 - math.cos(math.pi * ((num_inference_steps - i) / num_inference_steps) ** 5.0)) / 2
                     )
                 if do_classifier_free_guidance:
                     noise_pred_uncond, noise_pred_text = noise_pred.chunk(2)
diff --git a/src/diffusers/pipelines/cogvideo/pipeline_cogvideox_video2video.py b/src/diffusers/pipelines/cogvideo/pipeline_cogvideox_video2video.py
index e3ce8292fad6..5365eb2fea43 100644
--- a/src/diffusers/pipelines/cogvideo/pipeline_cogvideox_video2video.py
+++ b/src/diffusers/pipelines/cogvideo/pipeline_cogvideox_video2video.py
@@ -817,7 +817,7 @@ def __call__(
                 # perform guidance
                 if use_dynamic_cfg:
                     self._guidance_scale = 1 + guidance_scale * (
-                        (1 - math.cos(math.pi * ((num_inference_steps - t.item()) / num_inference_steps) ** 5.0)) / 2
+                        (1 - math.cos(math.pi * ((num_inference_steps - i) / num_inference_steps) ** 5.0)) / 2
                     )
                 if do_classifier_free_guidance:
                     noise_pred_uncond, noise_pred_text = noise_pred.chunk(2)