diff --git a/lib/has_permalink.rb b/lib/has_permalink.rb
index 6c9d9a3..4ae26f6 100644
--- a/lib/has_permalink.rb
+++ b/lib/has_permalink.rb
@@ -53,7 +53,11 @@ def to_param
     # Autofix duplication of permalinks
     def fix_duplication(permalink)
       if auto_fix_duplication
-        n = self.class.where(["permalink = ?", permalink]).count
+        n = if id.present?
+          self.class.where(["permalink = ? AND id != ?", permalink, id]).count
+        else
+          self.class.where(["permalink = ?", permalink]).count
+        end
 
         if n > 0
           links = self.class.where(["permalink LIKE ?", "#{permalink}%"]).order("id")