diff --git a/internal/bot/handlers.go b/internal/bot/handlers.go
index 741e3a6..7d03d04 100644
--- a/internal/bot/handlers.go
+++ b/internal/bot/handlers.go
@@ -171,8 +171,8 @@ func (h *Handler) HandleCallback(update tgbotapi.Update) {
 			h.selectAccent(chatID, msgID, cb.ID, cb.Data[7:])
 			return
 		}
-		if len(cb.Data) > 4 && cb.Data[:4] == "cal_" {
-			h.selectCalendar(chatID, msgID, cb.ID, cb.Data[4:])
+		if len(cb.Data) > 8 && cb.Data[:8] == "caltype_" {
+			h.selectCalendar(chatID, msgID, cb.ID, cb.Data[8:])
 			return
 		}
 		h.handleHistoryCallback(chatID, msgID, cb.ID, cb.Data)
@@ -601,7 +601,7 @@ func (h *Handler) buildCalendarKeyboard(user *db.User) (string, tgbotapi.InlineK
 			label = "> " + label
 		}
 		rows = append(rows, tgbotapi.NewInlineKeyboardRow(
-			tgbotapi.NewInlineKeyboardButtonData(label, "cal_"+c),
+			tgbotapi.NewInlineKeyboardButtonData(label, "caltype_"+c),
 		))
 	}
 	rows = append(rows, tgbotapi.NewInlineKeyboardRow(