diff --git a/mmseg/apis/remote_sense_inferencer.py b/mmseg/apis/remote_sense_inferencer.py
index 6726c6ae34..a280060421 100644
--- a/mmseg/apis/remote_sense_inferencer.py
+++ b/mmseg/apis/remote_sense_inferencer.py
@@ -16,7 +16,7 @@
     gdal = None
 
 from mmseg.registry import MODELS
-from .utils import _preprare_data
+from .utils import _prepare_data
 
 
 class RSImage:
@@ -224,7 +224,7 @@ def inference(self):
                 self.read_buffer.put(self.END_FLAG)
                 self.write_buffer.put(item)
                 break
-            data, _ = _preprare_data(item[1], self.model)
+            data, _ = _prepare_data(item[1], self.model)
             with torch.no_grad():
                 result = self.model.test_step(data)
             item[1] = result[0].pred_sem_seg.cpu().data.numpy()[0]
diff --git a/mmseg/apis/utils.py b/mmseg/apis/utils.py
index 4cf8775660..7cd8cef6b6 100644
--- a/mmseg/apis/utils.py
+++ b/mmseg/apis/utils.py
@@ -9,7 +9,7 @@
 ImageType = Union[str, np.ndarray, Sequence[str], Sequence[np.ndarray]]
 
 
-def _preprare_data(imgs: ImageType, model: BaseModel):
+def _prepare_data(imgs: ImageType, model: BaseModel):
 
     cfg = model.cfg
     for t in cfg.test_pipeline: