diff --git a/seed/applicationservice/2022.03.08/base/manual/install/diff.py b/seed/applicationservice/2022.03.08/base/manual/install/diff.py
index 74114443..f5780f60 100755
--- a/seed/applicationservice/2022.03.08/base/manual/install/diff.py
+++ b/seed/applicationservice/2022.03.08/base/manual/install/diff.py
@@ -42,12 +42,16 @@ type = "installe"
 +++
 """)
 for filename in FILES:
-    with open(join(OLD_DIR, filename[1:]), 'r') as ori:
-        ori_content = ori.readlines()
-    with open(join(NEW_DIR, filename[1:]), 'r') as new:
-        new_content = new.readlines()
     print(f'- mise à jour du fichier {filename} :\n')
-    print('```diff')
-    for line in unified_diff(ori_content, new_content, fromfile=filename, tofile=filename):
-        print(line.rstrip())
-    print('```')
+    try:
+        with open(join(OLD_DIR, filename[1:]), 'r') as ori:
+            ori_content = ori.readlines()
+        with open(join(NEW_DIR, filename[1:]), 'r') as new:
+            new_content = new.readlines()
+    except UnicodeDecodeError:
+        print('fichier binaire')
+    else:
+        print('```diff')
+        for line in unified_diff(ori_content, new_content, fromfile=filename, tofile=filename):
+            print(line.rstrip())
+        print('```')