diff --git a/superset-frontend/plugins/plugin-chart-echarts/src/MixedTimeseries/transformProps.ts b/superset-frontend/plugins/plugin-chart-echarts/src/MixedTimeseries/transformProps.ts
index fc4f1f82d..1300f6620 100644
--- a/superset-frontend/plugins/plugin-chart-echarts/src/MixedTimeseries/transformProps.ts
+++ b/superset-frontend/plugins/plugin-chart-echarts/src/MixedTimeseries/transformProps.ts
@@ -167,7 +167,7 @@ export default function transformProps(
   });
 
   const dataTypes = getColtypesMapping(queriesData[0]);
-  const xAxisDataType = dataTypes?.[xAxisCol];
+  const xAxisDataType = dataTypes?.[xAxisCol] ?? dataTypes?.[xAxisOrig];
   const xAxisType = getAxisType(xAxisDataType);
   const series: SeriesOption[] = [];
   const formatter = getNumberFormatter(contributionMode ? ',.0%' : yAxisFormat);