diff --git a/htdocs/core/class/html.formfile.class.php b/htdocs/core/class/html.formfile.class.php
index 1226d3b35ba..96b4ae2805e 100644
--- a/htdocs/core/class/html.formfile.class.php
+++ b/htdocs/core/class/html.formfile.class.php
@@ -109,7 +109,10 @@ class FormFile
 
             $max=$conf->global->MAIN_UPLOAD_DOC;		// En Kb
             $maxphp=@ini_get('upload_max_filesize');	// En inconnu
+            if (preg_match('/k$/i',$maxphp)) $maxphp=$maxphp*1;
             if (preg_match('/m$/i',$maxphp)) $maxphp=$maxphp*1024;
+            if (preg_match('/g$/i',$maxphp)) $maxphp=$maxphp*1024*1024;
+            if (preg_match('/t$/i',$maxphp)) $maxphp=$maxphp*1024*1024*1024;
             // Now $max and $maxphp are in Kb
             if ($maxphp > 0) $max=min($max,$maxphp);