diff --git a/src/main/java/com/ffii/fpsms/modules/chart/service/ChartService.kt b/src/main/java/com/ffii/fpsms/modules/chart/service/ChartService.kt
index 2f736f5..fe11dd4 100644
--- a/src/main/java/com/ffii/fpsms/modules/chart/service/ChartService.kt
+++ b/src/main/java/com/ffii/fpsms/modules/chart/service/ChartService.kt
@@ -317,7 +317,7 @@ open class ChartService(
                 COUNT(dpor.id) AS orderCount,
                 COALESCE(SUM(
                     CASE
-                        WHEN dpor.ticketReleaseTime IS NOT NULL AND dpor.ticketCompleteDateTime IS NOT NULL
+                        WHEN dpor.ticket_release_time IS NOT NULL AND dpor.ticketCompleteDateTime IS NOT NULL
                         THEN GREATEST(0, TIMESTAMPDIFF(MINUTE, dpor.ticket_release_time, dpor.ticketCompleteDateTime))
                         ELSE 0
                     END