diff --git a/install-dev/upgrade/php/p15015_blockadvertising_extension.php b/install-dev/upgrade/php/p15015_blockadvertising_extension.php
index aa23cd093..2847cb6ef 100644
--- a/install-dev/upgrade/php/p15015_blockadvertising_extension.php
+++ b/install-dev/upgrade/php/p15015_blockadvertising_extension.php
@@ -30,8 +30,8 @@ function p15015_blockadvertising_extension()
 		define('_PS_ROOT_DIR_', realpath(INSTALL_PATH.'/../'));
 
 	// Try to update with the extension of the image that exists in the module directory
-	if (@file_exists(_PS_ROOT_DIR_.'modules/blockadvertising'))
-		foreach (@scandir(_PS_ROOT_DIR_.'modules/blockadvertising') as $file)
+	if (@file_exists(_PS_ROOT_DIR_.'/modules/blockadvertising'))
+		foreach (@scandir(_PS_ROOT_DIR_.'/modules/blockadvertising') as $file)
 			if (in_array($file, array('advertising.jpg', 'advertising.gif', 'advertising.png')))
 				Db::getInstance()->execute('
 				REPLACE INTO `'._DB_PREFIX_.'configuration` (name, value)
diff --git a/install-dev/upgrade/php/update_genders_images.php b/install-dev/upgrade/php/update_genders_images.php
index 4d21e9542..cee0ae6cd 100644
--- a/install-dev/upgrade/php/update_genders_images.php
+++ b/install-dev/upgrade/php/update_genders_images.php
@@ -32,6 +32,6 @@ function update_genders_images()
 		@rename(_PS_ROOT_DIR_.'/img/genders/Ms.jpg', _PS_ROOT_DIR_.'/img/genders/2.jpg');
 	if (@file_exists(_PS_ROOT_DIR_.'/img/genders/Miss.jpg'))
 		@rename(_PS_ROOT_DIR_.'/img/genders/Miss.jpg', _PS_ROOT_DIR_.'/img/genders/3.jpg');
-	if (@file_exists(_PS_ROOT_DIR_.'genders/unknown.jpg'))
+	if (@file_exists(_PS_ROOT_DIR_.'/img/genders/unknown.jpg'))
 		@rename(_PS_ROOT_DIR_.'/img/genders/unknown.jpg', _PS_ROOT_DIR_.'/img/genders/Unknown.jpg');	
 }
\ No newline at end of file