diff --git a/io_results_loader.py b/io_results_loader.py
index bf8a585..6316a6d 100644
--- a/io_results_loader.py
+++ b/io_results_loader.py
@@ -44,7 +44,7 @@
         val['blocksize_b'] = ssize_to_b(val['blocksize'])
 
         val['iops_mediana'], val['iops_stddev'] = med_dev(val['iops'])
-        val['bw_mediana'], val['bw_stddev'] = med_dev(val['bw_mean'])
+        val['bw_mediana'], val['bw_stddev'] = med_dev(val['bw'])
         val['lat_mediana'], val['lat_stddev'] = med_dev(val['lat'])
         yield val