diff --git a/csst_mci_sim/csst_mci_sim.py b/csst_mci_sim/csst_mci_sim.py
index d1864bb092bb483ff06c7a25be6803c7ba226657..1cb234991c25b50110243e22dcc909407604c9b7 100644
--- a/csst_mci_sim/csst_mci_sim.py
+++ b/csst_mci_sim/csst_mci_sim.py
@@ -1822,11 +1822,11 @@ class MCIsimulator():
 
             # ###### use  SED_code to generate star SED   #######
             if get_file_extension(starcat) == '.fits':
-                umag = self.star['gmag'][j]; 
-                gmag = self.star['gmag'][j]; 
-                rmag = self.star['rmag'][j]; 
-                imag = self.star['imag'][j]; 
-                zmag = self.star['zmag'][j];
+                umag = self.star['gmag'][j]
+                gmag = self.star['gmag'][j]
+                rmag = self.star['rmag'][j]
+                imag = self.star['imag'][j]
+                zmag = self.star['zmag'][j]
 
             # SED of j-th star
             else:
@@ -3370,7 +3370,7 @@ class MCIsimulator():
         else:
 
             if direction == 'horizon':
-                self.information['bleding_direction']='Not_horizon'
+                self.information['bleding_direction'] = 'Not_horizon'
                 # loop over each column, as bleeding is modelled column-wise
                 # for i, column in enumerate(data):  # select one solumnn
                 #     if column.max() <= self.information['fullwellcapacity']: