diff --git a/judge/models/problem.py b/judge/models/problem.py
index 59017f9..76eca0a 100644
--- a/judge/models/problem.py
+++ b/judge/models/problem.py
@@ -559,10 +559,6 @@ class Problem(models.Model):
         return result
 
     def save(self, *args, **kwargs):
-        if self.pdf_description:
-            self.pdf_description.name = problem_directory_file_helper(
-                self.code, self.pdf_description.name
-            )
         super(Problem, self).save(*args, **kwargs)
         if self.code != self.__original_code:
             try:
@@ -571,6 +567,10 @@ class Problem(models.Model):
                 pass
             else:
                 problem_data._update_code(self.__original_code, self.code)
+                if self.pdf_description:
+                    self.pdf_description.name = problem_directory_file_helper(
+                        self.code, self.pdf_description.name
+                    )
 
     save.alters_data = True