diff --git a/tensorflow/python/keras/backend.py b/tensorflow/python/keras/backend.py
index 1a1507b3882..16931b0dd00 100644
--- a/tensorflow/python/keras/backend.py
+++ b/tensorflow/python/keras/backend.py
@@ -4406,7 +4406,7 @@ def sparse_categorical_crossentropy(target, output, from_logits=False, axis=-1):
 
   target = cast(target, 'int64')
 
-  # Try to adjust the shape so that rank of labels = 1 - rank of logits.
+  # Try to adjust the shape so that rank of labels = rank of logits - 1.
   output_shape = array_ops.shape_v2(output)
   target_rank = target.shape.ndims