diff --git a/tests/test_partitions.py b/tests/test_partitions.py
index 78de1e0177bf24de8a33223ab0487741739b934a..87e987b288378de7857550307d4e3711b6e35648 100755
--- a/tests/test_partitions.py
+++ b/tests/test_partitions.py
@@ -79,6 +79,7 @@ def check_allocation(dev):
     unallocated = max_size - total_size
     unallocated_gbytes = to_gbytes(unallocated)
     if unallocated_gbytes > 1:
+        print('Warning, %s GB are unallocated on %s' % (unallocated_gbytes, root_dev))
         return False
     return True