diff --git a/bob/learn/tensorflow/script/cache_dataset.py b/bob/learn/tensorflow/script/cache_dataset.py
index 7bb443af18eccf1e445871d51d70623001770619..7f8c04f39dceaf9a312ed655d1a17882431058e2 100644
--- a/bob/learn/tensorflow/script/cache_dataset.py
+++ b/bob/learn/tensorflow/script/cache_dataset.py
@@ -43,6 +43,7 @@ def cache_dataset(input_fn, mode, **kwargs):
     kwargs = {}
     if is_argument_available('cache_only', input_fn):
         kwargs['cache_only'] = True
+        logger.info("cache_only as True will be passed to input_fn.")
 
     # call the input function manually
     with tf.Session() as sess: