diff --git a/extend/catcher/exceptions/CatchException.php b/extend/catcher/exceptions/CatchException.php
index b3d9bbc..f2ebbbb 100644
--- a/extend/catcher/exceptions/CatchException.php
+++ b/extend/catcher/exceptions/CatchException.php
@@ -1 +1,5 @@
 <?php
+namespace catcher\exceptions;
+
+abstract class CatchException extends \Exception
+{}
diff --git a/extend/catcher/exceptions/FailedException.php b/extend/catcher/exceptions/FailedException.php
index 6fed81b..e07a083 100644
--- a/extend/catcher/exceptions/FailedException.php
+++ b/extend/catcher/exceptions/FailedException.php
@@ -1,7 +1,7 @@
 <?php
 namespace catcher\exceptions;
 
-class FailedException extends \Exception
+class FailedException extends CatchException
 {
     protected $code = 10010;
 }
diff --git a/extend/catcher/exceptions/LoginFailedException.php b/extend/catcher/exceptions/LoginFailedException.php
index df56dd9..9fd2c10 100644
--- a/extend/catcher/exceptions/LoginFailedException.php
+++ b/extend/catcher/exceptions/LoginFailedException.php
@@ -1,7 +1,7 @@
 <?php
 namespace catcher\exceptions;
 
-class LoginFailedException extends \Exception
+class LoginFailedException extends CatchException
 {
     protected $code = 10010;
 }
\ No newline at end of file
diff --git a/extend/catcher/exceptions/PermissionForbiddenException.php b/extend/catcher/exceptions/PermissionForbiddenException.php
index 8752cc8..dd9a1c8 100644
--- a/extend/catcher/exceptions/PermissionForbiddenException.php
+++ b/extend/catcher/exceptions/PermissionForbiddenException.php
@@ -1,7 +1,7 @@
 <?php
 namespace catcher\exceptions;
 
-class PermissionForbiddenException extends \Exception
+class PermissionForbiddenException extends CatchException
 {
     protected $code = 10005;
 
diff --git a/extend/catcher/exceptions/ValidateFailedException.php b/extend/catcher/exceptions/ValidateFailedException.php
index 0cdede3..c7006e7 100644
--- a/extend/catcher/exceptions/ValidateFailedException.php
+++ b/extend/catcher/exceptions/ValidateFailedException.php
@@ -1,7 +1,7 @@
 <?php
 namespace catcher\exceptions;
 
-class ValidateFailedException extends \Exception
+class ValidateFailedException extends CatchException
 {
     protected $code = 10001;
 }