diff --git a/generators/generator.py b/generators/generator.py
index 2a70bf7..babeb36 100644
--- a/generators/generator.py
+++ b/generators/generator.py
@@ -40,10 +40,11 @@ class DynastieGenerator:
     report = ''
     somethingWrote = False
 
-    def __init__(self, hash_posts=None):
+    def __init__(self, hash_posts=None, hash_posts_content=None):
         self.report = ''
         self.somethingWrote = False
         self.hash_posts = hash_posts
+        self.hash_posts_content = hash_posts_content
 
     def addReport(self, string, color=''):
         if color != '':
diff --git a/generators/index.py b/generators/index.py
index 882748e..bae8c30 100644
--- a/generators/index.py
+++ b/generators/index.py
@@ -17,8 +17,8 @@ class Index(DynastieGenerator):
     dirname = ''
     blog = None
 
-    def __init__(self, hash_posts=None):
-        DynastieGenerator.__init__(self, hash_posts)
+    def __init__(self, hash_posts=None, hash_posts_content=None):
+        DynastieGenerator.__init__(self, hash_posts, hash_posts_content)
 
         self.hooks = {'posts' : self.createPosts,
                       'title' : self.createTitle,
@@ -127,9 +127,13 @@ class Index(DynastieGenerator):
             self.addError('File does not exists ' + filename)
             return None
 
-        f = open(filename, 'rb')
-        post_content = f.read()
-        f.close()
+        if not filename in self.hash_posts_content:
+            f = open(filename, 'rb')
+            post_content = f.read()
+            f.close()
+            self.hash_posts_content[filename] = post_content
+        else:
+            post_content = self.hash_posts_content[filename]
 
         while True:
             start = post_content.find('<dyn:code')
diff --git a/models.py b/models.py
index 9f086ff..b262af8 100644
--- a/models.py
+++ b/models.py
@@ -150,13 +150,14 @@ class Blog(models.Model):
         self.copytree(self.src_path, self.output_path)
         generated = []
         hash_posts = {}
+        hash_posts_content = {}
         for engine in self.engines:
             if not inspect.ismodule(engine):
                 continue
             for name, obj in inspect.getmembers(engine):
                 if inspect.isclass(obj) and obj.__module__.startswith("dynastie.generators"):
                     if obj.__module__ in generated: continue
-                    e = obj(hash_posts)
+                    e = obj(hash_posts, hash_posts_content)
                     r = e.generate(self, self.src_path, self.output_path)
                     generated.append(obj.__module__)
                     if not r is None: