diff --git a/backend/src/api/fixtures/initial_data.py b/backend/src/api/fixtures/initial_data.py
index 6835a1f3..27656adc 100644
--- a/backend/src/api/fixtures/initial_data.py
+++ b/backend/src/api/fixtures/initial_data.py
@@ -415,7 +415,7 @@
 ]
 
 PARAMETERS = [
-    "TimeExposed"
+    "TimeExposed",
     "TimeInfectedNoSymptoms",
     "TimeInfectedSymptoms",
     "TimeInfectedSevere",