diff --git a/src/main/java/com/ffii/tsms/modules/data/service/TeamService.kt b/src/main/java/com/ffii/tsms/modules/data/service/TeamService.kt
index 2254457..4040b18 100644
--- a/src/main/java/com/ffii/tsms/modules/data/service/TeamService.kt
+++ b/src/main/java/com/ffii/tsms/modules/data/service/TeamService.kt
@@ -84,7 +84,7 @@ open class TeamService(
         }
 
         for (id in addIds) {
-            val staff = staffRepository.findById(id).orElseThrow()
+            val staff = staffRepository.findById(id.toLong()).orElseThrow()
             staff.apply {
                 this.team = team
             }