diff --git a/csst_mci_sim/csst_mci_sim.py b/csst_mci_sim/csst_mci_sim.py
index 19088ebe8e4d6db59c82c6ad596d626d8a643d16..39d26d88a54d1971cccb3fa5cfd81b4aff5e4476 100644
--- a/csst_mci_sim/csst_mci_sim.py
+++ b/csst_mci_sim/csst_mci_sim.py
@@ -2670,7 +2670,7 @@ class MCIsimulator():
             print('k2=',k2)
             
             #  
-            filename=information['dir_path']+'MCI_inputData/galaxy_Input/Lens_SED_IMG_0.025_230626/Lens_img_cut_IMG_'+str(k2+1)+'.fits'  
+            filename=self.information['dir_path']+'MCI_inputData/galaxy_Input/Lens_SED_IMG_0.025_230626/Lens_img_cut_IMG_'+str(k2+1)+'.fits'  
            
             self.log.info('galaxy_Input image path is: %s' %(filename))  
             
@@ -2681,7 +2681,7 @@ class MCIsimulator():
             srcs_cat=fits.open(filename)
                       
             #### load galaxy SED fitsfile  ###
-            filename=information['dir_path']+'MCI_inputData/galaxy_Input/Lens_SED_IMG_0.025_230626/Lens_img_cut_SED_'+str(k2+1)+'.fits'  
+            filename=self.information['dir_path']+'MCI_inputData/galaxy_Input/Lens_SED_IMG_0.025_230626/Lens_img_cut_SED_'+str(k2+1)+'.fits'  
             srcs_sed=fits.open(filename) 
             
             self.log.info('galaxy_Input SED path is: %s' %(filename))