diff --git a/utils/views_commons.py b/utils/views_commons.py
index 4aac9492dafa48d95c749e5a9f690d089ab3c11a..d470304880ee94a9e2413da51ea4633bace1dc64 100644
--- a/utils/views_commons.py
+++ b/utils/views_commons.py
@@ -35,7 +35,8 @@ class CommonViews:
 
         # define allowed statistics in agg
         # special handling for percentiles
-        self.STATS = {'mean': np.mean, 'min': np.amin, 'max': np.amax, 'median': np.median, 'percentile': np.percentile}
+        self.STATS = {'mean': np.mean, 'min': np.amin, 'max': np.amax, 'median': np.median, 'percentile': np.percentile,
+                      'sum': np.sum}
         self.AGG_ALLOWED = list(self.STATS.keys())
         self.update_agg_allowed()