diff --git a/calendar/api_cal.go b/calendar/api_cal.go
index 1e4a92d..c941362 100644
--- a/calendar/api_cal.go
+++ b/calendar/api_cal.go
@@ -33,10 +33,10 @@ func ApiCalQuery(c *gin.Context) {
 			if grp_id == 0 {
 				panic(errors.ErrorNotFound)
 			}
-			result = db.Find(&cals, "`group_id` = ? ", grp_id)
+			result = db.Find(&cals, "group_id = ? ", grp_id)
 		} else if !auth.ACHas(c, auth.ADMIN, auth.SYSTEM) {
 			result = db.
-				Find(&cals, "`group_id` in (?) or group_id = 0",
+				Find(&cals, "group_id in (?) or group_id = 0",
 					db.Table("groups").Select("id").Where("name in ?", cl.Groups))
 		} else {
 			result = db.Find(&cals)