diff --git a/pkg/utils/db.go b/pkg/utils/db.go
index 019b6d88da..8d43994380 100644
--- a/pkg/utils/db.go
+++ b/pkg/utils/db.go
@@ -303,7 +303,7 @@ func GetServerID(db *sql.DB) (uint32, error) {
 		return 0, err
 	}
 
-	serverID, err := strconv.ParseInt(serverIDStr, 10, 32)
+	serverID, err := strconv.ParseUint(serverIDStr, 10, 32)
 	return uint32(serverID), terror.ErrInvalidServerID.Delegate(err, serverIDStr)
 }
 
diff --git a/pkg/utils/db_test.go b/pkg/utils/db_test.go
index fa76873bd0..1a171cddf6 100644
--- a/pkg/utils/db_test.go
+++ b/pkg/utils/db_test.go
@@ -32,6 +32,9 @@ func (t *testUtilsSuite) TestGetAllServerID(c *C) {
 		}, {
 			2,
 			[]uint32{},
+		}, {
+			4294967295, // max server-id.
+			[]uint32{},
 		},
 	}