diff --git a/checker/synapse_grafana.py b/checker/synapse_grafana.py
index 0e48f6d..1ce844f 100644
--- a/checker/synapse_grafana.py
+++ b/checker/synapse_grafana.py
@@ -316,6 +316,7 @@ def get_waiting_for_db(api_key, interval, data_range, endpoint):
     for i in range(len(raw_data)):
         if raw_data[i] is not None:
             data.append(raw_data[i])
+        else:
             null_present = True
     return np.round(np.average(data), 5), null_present, raw_data