diff --git a/sage_datamart/init.py b/sage_datamart/init.py
index b4f3152..cf273f1 100644
--- a/sage_datamart/init.py
+++ b/sage_datamart/init.py
@@ -55,7 +55,7 @@ async def _resolve_view(request):
 
 async def api_model_perf(sor, params_kw=None):
     try:
-        stat_date = params_kw.get('date') if params_kw else None
+        stat_date = (params_kw or {}).get('date')
         sql = """SELECT COALESCE(l.name, f.model) as model,
             CASE WHEN SUM(total_calls)>0 THEN ROUND(SUM(total_calls*COALESCE(avg_ttft_ms,avg_ttot_ms))/SUM(total_calls),1) ELSE NULL END as avg_latency_ms,
             CASE WHEN SUM(total_calls)>0 THEN ROUND(SUM(total_calls*avg_ttot_ms)/SUM(total_calls),1) ELSE NULL END as avg_ttot_ms,
@@ -79,8 +79,8 @@ async def api_model_perf(sor, params_kw=None):
 
 async def api_provider_roi(sor, params_kw=None):
     try:
-        model = params_kw.get('model') if params_kw else None
-        stat_date = params_kw.get('date') if params_kw else None
+        model = (params_kw or {}).get('model')
+        stat_date = (params_kw or {}).get('date')
         sql = "SELECT * FROM dm_provider_cost_daily WHERE 1=1"
         ns = {}
         if stat_date: