6 files changed, 6 insertions, 6 deletions
diff --git a/src/NXP/Exception/IncorrectBracketsException.php b/src/NXP/Exception/IncorrectBracketsException.php
index e2aaed9..b3e8315 100644
--- a/src/NXP/Exception/IncorrectBracketsException.php
+++ b/src/NXP/Exception/IncorrectBracketsException.php
@@ -14,6 +14,6 @@ namespace NXP\Exception;
 /**
  * @author Alexander Kiryukhin <alexander@symdev.org>
  */
-class IncorrectBracketsException extends \Exception
+class IncorrectBracketsException extends MathExecutorException
 {
 }
diff --git a/src/NXP/Exception/IncorrectExpressionException.php b/src/NXP/Exception/IncorrectExpressionException.php
index ad5bc42..6f579c1 100644
--- a/src/NXP/Exception/IncorrectExpressionException.php
+++ b/src/NXP/Exception/IncorrectExpressionException.php
@@ -14,6 +14,6 @@ namespace NXP\Exception;
 /**
  * @author Vitaliy Zhuk <zhuk2205@gmail.com>
  */
-class IncorrectExpressionException extends \Exception
+class IncorrectExpressionException extends MathExecutorException
 {
 }
diff --git a/src/NXP/Exception/UnknownFunctionException.php b/src/NXP/Exception/UnknownFunctionException.php
index 5bb3658..e8ff0c0 100644
--- a/src/NXP/Exception/UnknownFunctionException.php
+++ b/src/NXP/Exception/UnknownFunctionException.php
@@ -14,6 +14,6 @@ namespace NXP\Exception;
 /**
  * @author Vitaliy Zhuk <zhuk2205@gmail.com>
  */
-class UnknownFunctionException extends \Exception
+class UnknownFunctionException extends MathExecutorException
 {
 }
diff --git a/src/NXP/Exception/UnknownOperatorException.php b/src/NXP/Exception/UnknownOperatorException.php
index b6617c3..acb4b98 100644
--- a/src/NXP/Exception/UnknownOperatorException.php
+++ b/src/NXP/Exception/UnknownOperatorException.php
@@ -14,6 +14,6 @@ namespace NXP\Exception;
 /**
  * @author Vitaliy Zhuk <zhuk2205@gmail.com>
  */
-class UnknownOperatorException extends \Exception
+class UnknownOperatorException extends MathExecutorException
 {
 }
diff --git a/src/NXP/Exception/UnknownTokenException.php b/src/NXP/Exception/UnknownTokenException.php
index b8a593f..bba28a4 100644
--- a/src/NXP/Exception/UnknownTokenException.php
+++ b/src/NXP/Exception/UnknownTokenException.php
@@ -14,6 +14,6 @@ namespace NXP\Exception;
 /**
  * @author Vitaliy Zhuk <zhuk2205@gmail.com>
  */
-class UnknownTokenException extends \Exception
+class UnknownTokenException extends MathExecutorException
 {
 }
diff --git a/src/NXP/Exception/UnknownVariableException.php b/src/NXP/Exception/UnknownVariableException.php
index 8de9493..8c215db 100644
--- a/src/NXP/Exception/UnknownVariableException.php
+++ b/src/NXP/Exception/UnknownVariableException.php
@@ -14,6 +14,6 @@ namespace NXP\Exception;
 /**
  * @author Alexander Kiryukhin <alexander@symdev.org>
  */
-class UnknownVariableException extends \Exception
+class UnknownVariableException extends MathExecutorException
 {
 }