diff --git a/superset-frontend/plugins/plugin-chart-echarts/src/BigNumber/BigNumberWithTrendline/buildQuery.ts b/superset-frontend/plugins/plugin-chart-echarts/src/BigNumber/BigNumberWithTrendline/buildQuery.ts
index b4dcd2a09..be35734c2 100644
--- a/superset-frontend/plugins/plugin-chart-echarts/src/BigNumber/BigNumberWithTrendline/buildQuery.ts
+++ b/superset-frontend/plugins/plugin-chart-echarts/src/BigNumber/BigNumberWithTrendline/buildQuery.ts
@@ -33,9 +33,9 @@ const TIME_GRAIN_MAP: Record<string, string> = {
   PT30M: '30min',
   PT1H: 'H',
   P1D: 'D',
-  P1M: 'M',
-  P3M: 'Q',
-  P1Y: 'A',
+  P1M: 'MS',
+  P3M: 'QS',
+  P1Y: 'AS',
   // TODO: these need to be mapped carefully, as the first day of week
   //  can vary from engine to engine
   // P1W: 'W',