diff --git a/tasks/watergroup/month.go b/tasks/watergroup/month.go
index e0c8e75b..54175e13 100644
--- a/tasks/watergroup/month.go
+++ b/tasks/watergroup/month.go
@@ -83,7 +83,7 @@ func dealMonth(gid string) {
 	notifyMsgs = append(notifyMsgs, " ")
 	notifyMsgs = append(notifyMsgs, fmt.Sprintf("🗣️ %s本群 %d 位朋友共产生 %d 条发言", monthStr, len(records), msgCount))
 	if showActivity {
-		notifyMsgs = append(notifyMsgs, fmt.Sprintf("🎭 活跃度: %s%", activity))
+		notifyMsgs = append(notifyMsgs, fmt.Sprintf("🎭 活跃度: %s%%", activity))
 	}
 	notifyMsgs = append(notifyMsgs, "\n🏵 活跃用户排行榜 🏵")
 
diff --git a/tasks/watergroup/week.go b/tasks/watergroup/week.go
index 43c315ab..8cc58560 100644
--- a/tasks/watergroup/week.go
+++ b/tasks/watergroup/week.go
@@ -82,7 +82,7 @@ func dealWeek(gid string) {
 	notifyMsgs = append(notifyMsgs, " ")
 	notifyMsgs = append(notifyMsgs, fmt.Sprintf("🗣️ 上周本群 %d 位朋友共产生 %d 条发言", len(records), msgCount))
 	if showActivity {
-		notifyMsgs = append(notifyMsgs, fmt.Sprintf("🎭 活跃度: %s%", activity))
+		notifyMsgs = append(notifyMsgs, fmt.Sprintf("🎭 活跃度: %s%%", activity))
 	}
 	notifyMsgs = append(notifyMsgs, "\n🏵 活跃用户排行榜 🏵")
 
diff --git a/tasks/watergroup/year.go b/tasks/watergroup/year.go
index 20b8a362..1c9f236e 100644
--- a/tasks/watergroup/year.go
+++ b/tasks/watergroup/year.go
@@ -90,7 +90,7 @@ func dealYear(gid string) {
 	notifyMsgs = append(notifyMsgs, " ")
 	notifyMsgs = append(notifyMsgs, fmt.Sprintf("🗣️ 去年本群 %d 位朋友共产生 %d 条发言", len(records), msgCount))
 	if showActivity {
-		notifyMsgs = append(notifyMsgs, fmt.Sprintf("🎭 活跃度: %s%", activity))
+		notifyMsgs = append(notifyMsgs, fmt.Sprintf("🎭 活跃度: %s%%", activity))
 	}
 	notifyMsgs = append(notifyMsgs, "\n🏵 活跃用户排行榜 🏵")
 
diff --git a/tasks/watergroup/yesterday.go b/tasks/watergroup/yesterday.go
index ab01626e..b52d4fcd 100644
--- a/tasks/watergroup/yesterday.go
+++ b/tasks/watergroup/yesterday.go
@@ -84,7 +84,7 @@ func dealYesterday(gid string) {
 	notifyMsgs = append(notifyMsgs, " ")
 	notifyMsgs = append(notifyMsgs, fmt.Sprintf("🗣️ 昨日本群 %d 位朋友共产生 %d 条发言", len(records), msgCount))
 	if showActivity {
-		notifyMsgs = append(notifyMsgs, fmt.Sprintf("🎭 活跃度: %s%", activity))
+		notifyMsgs = append(notifyMsgs, fmt.Sprintf("🎭 活跃度: %s%%", activity))
 	}
 	notifyMsgs = append(notifyMsgs, "\n🏵 活跃用户排行榜 🏵")