diff --git a/src/stubs.php b/src/stubs.php
index bc065bb..9c7b024 100644
--- a/src/stubs.php
+++ b/src/stubs.php
@@ -7,7 +7,7 @@
  * @param array $options An array of optional options, namely, the 'ignored_functions' option to pass in functions to be ignored during profiling.
  * @return null
  */
-function tideways_enable($flags = 0, array $options)
+function tideways_enable($flags = 0, array $options = [])
 {
 }