diff --git a/vllm/model_executor/models/minicpmv4_6.py b/vllm/model_executor/models/minicpmv4_6.py
index 79ac79d709a..6cdc3624151 100644
--- a/vllm/model_executor/models/minicpmv4_6.py
+++ b/vllm/model_executor/models/minicpmv4_6.py
@@ -140,7 +140,7 @@ class MiniCPMV4_6MultiModalProcessor(MiniCPMVMultiModalProcessor):
         per_frame = image_start + video_token * source_tokens + image_end
         if grids[0] > 0 and grids[1] > 0 and patch_tokens > 0:
             slice_ph = slice_start + video_token * patch_tokens + slice_end
-            rows = [slice_ph * grids[0] for _ in range(grids[1])]
+            rows = [slice_ph * grids[1] for _ in range(grids[0])]
             per_frame += "\n".join(rows)
 
         body = per_frame * num_frames
@@ -596,7 +596,7 @@ class MiniCPMV4_6ProcessingInfo(MiniCPMVProcessingInfo):
         if use_image_id:
             placeholder = f"{id_start}{image_idx}{id_end}" + placeholder
 
-        num_cols, num_rows = grids[0], grids[1]
+        num_rows, num_cols = grids[0], grids[1]
         if num_cols > 0 and num_rows > 0 and patch_tokens > 0:
             slice_ph = slice_start + image_token * patch_tokens + slice_end
             slices = [slice_ph * num_cols for _ in range(num_rows)]