diff --git a/src/diffusers/pipelines/wan/pipeline_wan.py b/src/diffusers/pipelines/wan/pipeline_wan.py
index dc2bb471101d..362440c8c9c8 100644
--- a/src/diffusers/pipelines/wan/pipeline_wan.py
+++ b/src/diffusers/pipelines/wan/pipeline_wan.py
@@ -496,6 +496,17 @@ def __call__(
             num_frames = num_frames // self.vae_scale_factor_temporal * self.vae_scale_factor_temporal + 1
         num_frames = max(num_frames, 1)
 
+        h_multiple_of = self.vae_scale_factor_spatial * self.transformer.config.patch_size[1]
+        w_multiple_of = self.vae_scale_factor_spatial * self.transformer.config.patch_size[2]
+        calc_height = height // h_multiple_of * h_multiple_of
+        calc_width = width // w_multiple_of * w_multiple_of
+        if height != calc_height or width != calc_width:
+            logger.warning(
+                f"`height` and `width` must be multiples of ({h_multiple_of}, {w_multiple_of}) for proper patchification. "
+                f"Adjusting ({height}, {width}) -> ({calc_height}, {calc_width})."
+            )
+            height, width = calc_height, calc_width
+
         if self.config.boundary_ratio is not None and guidance_scale_2 is None:
             guidance_scale_2 = guidance_scale
 
diff --git a/src/diffusers/pipelines/wan/pipeline_wan_i2v.py b/src/diffusers/pipelines/wan/pipeline_wan_i2v.py
index b7fd0b05980f..e22d8393bd1a 100644
--- a/src/diffusers/pipelines/wan/pipeline_wan_i2v.py
+++ b/src/diffusers/pipelines/wan/pipeline_wan_i2v.py
@@ -637,6 +637,17 @@ def __call__(
             num_frames = num_frames // self.vae_scale_factor_temporal * self.vae_scale_factor_temporal + 1
         num_frames = max(num_frames, 1)
 
+        h_multiple_of = self.vae_scale_factor_spatial * self.transformer.config.patch_size[1]
+        w_multiple_of = self.vae_scale_factor_spatial * self.transformer.config.patch_size[2]
+        calc_height = height // h_multiple_of * h_multiple_of
+        calc_width = width // w_multiple_of * w_multiple_of
+        if height != calc_height or width != calc_width:
+            logger.warning(
+                f"`height` and `width` must be multiples of ({h_multiple_of}, {w_multiple_of}) for proper patchification. "
+                f"Adjusting ({height}, {width}) -> ({calc_height}, {calc_width})."
+            )
+            height, width = calc_height, calc_width
+
         if self.config.boundary_ratio is not None and guidance_scale_2 is None:
             guidance_scale_2 = guidance_scale