diff --git a/src/server/game/Achievements/AchievementMgr.cpp b/src/server/game/Achievements/AchievementMgr.cpp
index cc4bf13253..996b8fda48 100755
--- a/src/server/game/Achievements/AchievementMgr.cpp
+++ b/src/server/game/Achievements/AchievementMgr.cpp
@@ -104,8 +104,12 @@ bool AchievementCriteriaData::IsValid(AchievementCriteriaEntry const* criteria)
         case ACHIEVEMENT_CRITERIA_TYPE_GET_KILLING_BLOWS:
             break;
         default:
-            sLog->outErrorDb("Table `achievement_criteria_data` has data for non-supported criteria type (Entry: %u Type: %u), ignored.", criteria->ID, criteria->requiredType);
-            return false;
+            if (dataType != ACHIEVEMENT_CRITERIA_DATA_TYPE_SCRIPT)
+            {
+                sLog->outErrorDb("Table `achievement_criteria_data` has data for non-supported criteria type (Entry: %u Type: %u), ignored.", criteria->ID, criteria->requiredType);
+                return false;
+            }
+            break;
     }
 
     switch (dataType)