diff --git a/system/admin/admin.php b/system/admin/admin.php
index fbc13b6..e7dc4f8 100644
--- a/system/admin/admin.php
+++ b/system/admin/admin.php
@@ -140,14 +140,24 @@ function add_content($title, $tag, $url, $content, $user, $description = null, $
         }            
     }
 
-    $post_tag = implode(',', array_keys($newtag));    
+    $post_tag = implode(',', array_keys($newtag));
+    
+    $posts = get_post_sorted();
+    foreach ($posts as $index => $v) {
+        $arr = explode('_', $v['basename']);
+        if (strtolower($arr[2]) === strtolower($post_url . '.md')) {
+            $post_url = $post_url .'-'. $timestamp;
+        } else {
+            $post_url = $post_url;
+        }
+    }
     
     if ($description !== null) {
-        if (!empty($description)) {		
+        if (!empty($description)) {        
             $post_description = "\n<!--d " . $description . " d-->";
         } else {
             $post_description = "\n<!--d " . get_description($content) . " d-->";
-        }			
+        }            
     } else {
         $post_description = "";
     }
@@ -267,11 +277,11 @@ function edit_content($title, $tag, $url, $content, $oldfile, $destination = nul
     $post_tag = implode(',', array_keys($newtag));
     
     if ($description !== null) {
-        if (!empty($description)) {		
+        if (!empty($description)) {        
             $post_description = "\n<!--d " . $description . " d-->";
         } else {
             $post_description = "\n<!--d " . get_description($content) . " d-->";
-        }			
+        }            
     } else {
         $post_description = "";
     }
@@ -411,11 +421,11 @@ function add_page($title, $url, $content, $description = null)
     $post_url = strtolower(preg_replace(array('/[^a-zA-Z0-9 \-\p{L}]/u', '/[ -]+/', '/^-|-$/'), array('', '-', ''), remove_accent($url)));
     $description = safe_html($description);
     if ($description !== null) {
-        if (!empty($description)) {		
+        if (!empty($description)) {        
             $post_description = "\n<!--d " . $description . " d-->";
         } else {
             $post_description = "\n<!--d " . get_description($content) . " d-->";
-        }			
+        }            
     } else {
         $post_description = "";
     }
@@ -449,11 +459,11 @@ function add_sub_page($title, $url, $content, $static, $description = null)
     $post_url = strtolower(preg_replace(array('/[^a-zA-Z0-9 \-\p{L}]/u', '/[ -]+/', '/^-|-$/'), array('', '-', ''), remove_accent($url)));
     $description = safe_html($description);
     if ($description !== null) {
-        if (!empty($description)) {		
+        if (!empty($description)) {        
             $post_description = "\n<!--d " . $description . " d-->";
         } else {
             $post_description = "\n<!--d " . get_description($content) . " d-->";
-        }			
+        }            
     } else {
         $post_description = "";
     }
@@ -488,11 +498,11 @@ function edit_page($title, $url, $content, $oldfile, $destination = null, $descr
     $post_url = strtolower(preg_replace(array('/[^a-zA-Z0-9 \-\p{L}]/u', '/[ -]+/', '/^-|-$/'), array('', '-', ''), remove_accent($url)));
     $description = safe_html($description);
     if ($description !== null) {
-        if (!empty($description)) {		
+        if (!empty($description)) {        
             $post_description = "\n<!--d " . $description . " d-->";
         } else {
             $post_description = "\n<!--d " . get_description($content) . " d-->";
-        }			
+        }            
     } else {
         $post_description = "";
     }
@@ -542,11 +552,11 @@ function add_category($title, $url, $content, $description = null)
     $post_url = strtolower(preg_replace(array('/[^a-zA-Z0-9 \-\p{L}]/u', '/[ -]+/', '/^-|-$/'), array('', '-', ''), remove_accent($url)));
     $description = safe_html($description);
     if ($description !== null) {
-        if (!empty($description)) {		
+        if (!empty($description)) {        
             $post_description = "\n<!--d " . $description . " d-->";
         } else {
             $post_description = "\n<!--d " . get_description($content) . " d-->";
-        }			
+        }            
     } else {
         $post_description = "";
     }
@@ -581,11 +591,11 @@ function edit_category($title, $url, $content, $oldfile, $destination = null, $d
     $post_url = strtolower(preg_replace(array('/[^a-zA-Z0-9 \-\p{L}]/u', '/[ -]+/', '/^-|-$/'), array('', '-', ''), remove_accent($url)));
     $description = safe_html($description);
     if ($description !== null) {
-        if (!empty($description)) {		
+        if (!empty($description)) {        
             $post_description = "\n<!--d " . $description . " d-->";
         } else {
             $post_description = "\n<!--d " . get_description($content) . " d-->";
-        }			
+        }            
     } else {
         $post_description = "";
     }