diff --git a/csst_mci_sim/csst_mci_sim.py b/csst_mci_sim/csst_mci_sim.py
index 7e99486ce3245e4ba4b7c0ab2cfbcfb1848a574a..b13f01585df9b8b774cbc9ac67ded738d23f1de1 100644
--- a/csst_mci_sim/csst_mci_sim.py
+++ b/csst_mci_sim/csst_mci_sim.py
@@ -1259,6 +1259,8 @@ class MCIsimulator():
         self.information['I_filters']=["z",      "y",    "F815N", "CBI",  "F925N", "F960M",  "F968N",  "F845M" ,"F850LP" ,"F814W"]
         
         #### load telescope efficiency data
+        print(self.information['dir_path'])
+        
         self.tel_eff=np.load(self.information['dir_path']+'MCI_inputData/tel_eff/tel_eff.npy',allow_pickle=True).item()
         
         #### load MCI filter data