diff --git a/htdocs/core/class/fileupload.class.php b/htdocs/core/class/fileupload.class.php
index feb35e660d7..aff9fd4d412 100644
--- a/htdocs/core/class/fileupload.class.php
+++ b/htdocs/core/class/fileupload.class.php
@@ -206,10 +206,10 @@ class FileUpload
 			if (!key_exists("upload_dir", $this->options)) {
 				setEventMessage('If $fk_element = null or $element = null you must specify upload_dir on $options', 'errors');
 				throw new Exception('If $fk_element = null or $element = null you must specify upload_dir on $options');
-			} elseif (is_dir($this->options['upload_dir'])) {
+			} elseif (!is_dir($this->options['upload_dir'])) {
 				setEventMessage('The directory '.$this->options['upload_dir'].' doesn\'t exists', 'errors');
 				throw new Exception('The directory '.$this->options['upload_dir'].' doesn\'t exists');
-			} elseif (is_writable($this->options['upload_dir'])) {
+			} elseif (!is_writable($this->options['upload_dir'])) {
 				setEventMessage('The directory '.$this->options['upload_dir'].' is not writable', 'errors');
 				throw new Exception('The directory '.$this->options['upload_dir'].' is not writable');
 			}