diff --git a/stubs/ext/bz2/bzerrno.php b/stubs/ext/bz2/bzerrno.php
index b24b1f1c..84aff886 100644
--- a/stubs/ext/bz2/bzerrno.php
+++ b/stubs/ext/bz2/bzerrno.php
@@ -1,6 +1,6 @@
 <?php 
 
 /** @param resource $bz */
-function bzerrno($bz) : int
+function bzerrno($bz) : int|false
 {
 }
\ No newline at end of file
diff --git a/stubs/ext/bz2/bzerror.php b/stubs/ext/bz2/bzerror.php
index 6fd31721..e2484917 100644
--- a/stubs/ext/bz2/bzerror.php
+++ b/stubs/ext/bz2/bzerror.php
@@ -1,6 +1,6 @@
 <?php 
 
 /** @param resource $bz */
-function bzerror($bz) : array
+function bzerror($bz) : array|false
 {
 }
\ No newline at end of file
diff --git a/stubs/ext/bz2/bzerrstr.php b/stubs/ext/bz2/bzerrstr.php
index 1616512a..a0f570c0 100644
--- a/stubs/ext/bz2/bzerrstr.php
+++ b/stubs/ext/bz2/bzerrstr.php
@@ -1,6 +1,6 @@
 <?php 
 
 /** @param resource $bz */
-function bzerrstr($bz) : string
+function bzerrstr($bz) : string|false
 {
 }
\ No newline at end of file