diff --git a/src/wp-admin/includes/file.php b/src/wp-admin/includes/file.php
index c38a6a40f1..286d76ff59 100644
--- a/src/wp-admin/includes/file.php
+++ b/src/wp-admin/includes/file.php
@@ -1022,7 +1022,7 @@ function request_filesystem_credentials($form_post, $type = '', $error = false,
 	$public_key = isset( $credentials['public_key'] ) ? $credentials['public_key'] : '';
 	$private_key = isset( $credentials['private_key'] ) ? $credentials['private_key'] : '';
 	$port = isset( $credentials['port'] ) ? $credentials['port'] : '';
-	$connection_type = isset( $credentials[''] ) ? $credentials[''] : '';
+	$connection_type = isset( $credentials['connection_type'] ) ? $credentials['connection_type'] : '';
 
 	if ( $error ) {
 		$error_string = __('<strong>ERROR:</strong> There was an error connecting to the server, Please verify the settings are correct.');