diff --git a/transforms.py b/transforms.py
index 7ccbab8..dbab259 100644
--- a/transforms.py
+++ b/transforms.py
@@ -120,7 +120,7 @@ def get_params(img, scale, ratio):
             tuple: params (i, j, h, w) to be passed to ``crop`` for a random
                 sized crop.
         """
-        width, height = FT._get_image_size(img)
+        width, height = FT.get_image_size(img)
         area = height * width
 
         log_ratio = torch.log(torch.tensor(ratio))