diff --git a/soul-api/internal/handler/admin_rfm.go b/soul-api/internal/handler/admin_rfm.go
index 297e168e..278ca55d 100644
--- a/soul-api/internal/handler/admin_rfm.go
+++ b/soul-api/internal/handler/admin_rfm.go
@@ -4,6 +4,7 @@ import (
 	"math"
 	"net/http"
 	"sort"
+	"strconv"
 	"strings"
 	"time"