diff --git a/src/LeanOrm/Exceptions/BadRecordClassNameForFetchingRelatedDataException.php b/src/LeanOrm/Exceptions/BadRecordClassNameForFetchingRelatedDataException.php
new file mode 100644
index 0000000..ee4e1be
--- /dev/null
+++ b/src/LeanOrm/Exceptions/BadRecordClassNameForFetchingRelatedDataException.php
@@ -0,0 +1,5 @@
+<?php
+declare(strict_types=1);
+namespace LeanOrm\Exceptions;
+    
+class BadRecordClassNameForFetchingRelatedDataException extends \Exception{}
diff --git a/src/LeanOrm/Model.php b/src/LeanOrm/Model.php
index 7637ade..9986035 100644
--- a/src/LeanOrm/Model.php
+++ b/src/LeanOrm/Model.php
@@ -551,7 +551,7 @@ protected function validateRelatedRecordClassName(string $record_class_name): bo
                  . PHP_EOL . static::class . '::' . __FUNCTION__ . '(...).' 
                  . PHP_EOL;
 
-            throw new BadRecordClassNameForFetchingRelatedDataException($msg);
+            throw new \LeanOrm\Exceptions\BadRecordClassNameForFetchingRelatedDataException($msg);
         }
 
         return true;
diff --git a/tests/ModelTest.php b/tests/ModelTest.php
index a1b46b5..cbf8142 100644
--- a/tests/ModelTest.php
+++ b/tests/ModelTest.php
@@ -180,7 +180,7 @@ public function testThatBelongsToThrowsExceptionWithInvalidForeignModelClassName
     
     public function testThatBelongsToThrowsExceptionWithInvalidForeignRecordClassName() {
         
-        $this->expectException(\LeanOrm\BadRecordClassNameForFetchingRelatedDataException::class);
+        $this->expectException(\LeanOrm\Exceptions\BadRecordClassNameForFetchingRelatedDataException::class);
         
         $model = new $this->modelClass(static::$dsn, static::$username ?? "", static::$password ?? "", [],'comment_id', 'comments');
         // relation name with the same name as p key column
@@ -313,7 +313,7 @@ public function testThatHasOneThrowsExceptionWithInvalidForeignModelClassName()
     
     public function testThatHasOneThrowsExceptionWithInvalidForeignRecordClassName() {
         
-        $this->expectException(\LeanOrm\BadRecordClassNameForFetchingRelatedDataException::class);
+        $this->expectException(\LeanOrm\Exceptions\BadRecordClassNameForFetchingRelatedDataException::class);
         
         $model = new $this->modelClass(static::$dsn, static::$username ?? "", static::$password ?? "", [],'comment_id', 'comments');
         $model->hasOne(
@@ -439,7 +439,7 @@ public function testThatHasManyThrowsExceptionWithInvalidForeignModelClassName()
     
     public function testThatHasManyThrowsExceptionWithInvalidForeignRecordClassName() {
         
-        $this->expectException(\LeanOrm\BadRecordClassNameForFetchingRelatedDataException::class);
+        $this->expectException(\LeanOrm\Exceptions\BadRecordClassNameForFetchingRelatedDataException::class);
         
         $model = new $this->modelClass(static::$dsn, static::$username ?? "", static::$password ?? "", [],'comment_id', 'comments');
         $model->hasMany(
@@ -567,7 +567,7 @@ public function testThatHasManyThroughThrowsExceptionWithInvalidForeignModelClas
     
     public function testThatHasManyThroughThrowsExceptionWithInvalidForeignRecordClassName() {
         
-        $this->expectException(\LeanOrm\BadRecordClassNameForFetchingRelatedDataException::class);
+        $this->expectException(\LeanOrm\Exceptions\BadRecordClassNameForFetchingRelatedDataException::class);
         
         $model = new $this->modelClass(static::$dsn, static::$username ?? "", static::$password ?? "", [],'post_id', 'posts');
         $model->hasManyThrough(