diff --git a/src/aeros_equipment/service.py b/src/aeros_equipment/service.py
index 3100694..f4a56c5 100644
--- a/src/aeros_equipment/service.py
+++ b/src/aeros_equipment/service.py
@@ -412,7 +412,10 @@ async def update_equipment_for_simulation(*, db_session: DbSession,aeros_db_sess
                         continue
                     
                     # Check eq dengan "TRIP" di WO, jika ada masukkan parameter Reliabilitu, jika tidak ada MTBF = duration
-                    MTBF = 1e+6 / float(custom_param['failure_rate'])
+                    if custom_param['failure_rate'] == 0:
+                        MTBF = 100000
+                    else:
+                        MTBF = 1e+6 / float(custom_param['failure_rate'])
                     
                         
                     eq["cmDisP1"] = custom_param["mttr"]