diff --git a/src/i18n/locales/en-US.ts b/src/i18n/locales/en-US.ts
index 233159e1..dbf99ac5 100644
--- a/src/i18n/locales/en-US.ts
+++ b/src/i18n/locales/en-US.ts
@@ -637,7 +637,7 @@ export default {
         value:'Value',
         startTime:'Start Time',
         endTime:'End Time',
-        particle: 'Particle Ssize',
+        particle: 'Granularity',
         timeFrame: 'Time Range',
         nullTip:'There are no statistical data within this time range',
         kpiTitle:'KPI Statistics Chart',