diff --git a/blog/index.gen.py b/blog/index.gen.py
index 155af01..87675a3 100755
--- a/blog/index.gen.py
+++ b/blog/index.gen.py
@@ -51,13 +51,14 @@ for x in myresult:
     except OSError:
         print ("Creation of the directory %s failed" % path)
 
-    print("creating %s/%s.gmi" % (path,quote(filename)))
-    f = open("%s/%s.gmi" % (path,quote(filename)), "w")
-    f.write("# %s\n\n" % x[1])
-    f.write("Publié le %s\n\n" % path)
-    f.write(html2markdown.convert(x[2]))
-    f.write("\n\n=> /blog/ Retour au menu du blog")
-    f.close()
+    if not os.path.isfile('%s/%s.gmi' % (path,quote(filename))):
+       print("creating %s/%s.gmi" % (path,quote(filename)))
+       f = open("%s/%s.gmi" % (path,quote(filename)), "w")
+       f.write("# %s\n\n" % x[1])
+       f.write("Publié le %s\n\n" % path)
+       f.write(html2markdown.convert(x[2]))
+       f.write("\n\n=> /blog/ Retour au menu du blog")
+       f.close()
 
 f = open("index.gmi", "a")
 f.write("\n=> Retour")