diff --git a/Exceptions/CannotExtendClassException.php b/Exceptions/CannotExtendClassException.php
index 827cf26..63b807b 100644
--- a/Exceptions/CannotExtendClassException.php
+++ b/Exceptions/CannotExtendClassException.php
@@ -6,6 +6,12 @@
 
 class CannotExtendClassException extends Exception
 {
+  /**
+   * __construct
+   *
+   * @param string $message
+   * @return void
+   */
   public function __construct(string $message)
   {
     $args = debug_backtrace()[1];
diff --git a/Exceptions/ClassDoesNotExistException.php b/Exceptions/ClassDoesNotExistException.php
new file mode 100644
index 0000000..1f89209
--- /dev/null
+++ b/Exceptions/ClassDoesNotExistException.php
@@ -0,0 +1,25 @@
+<?php
+
+namespace Modulus\Framework\Exceptions;
+
+use Exception;
+
+class ClassDoesNotExistException extends Exception
+{
+  /**
+   * __construct
+   *
+   * @param string $message
+   * @return void
+   */
+  public function __construct(string $message)
+  {
+    $args = debug_backtrace()[1];
+
+    foreach ($args as $key => $value) {
+      $this->{$key} = $value;
+    }
+
+    $this->message = $message;
+  }
+}
diff --git a/Upstart/Prototype.php b/Upstart/Prototype.php
index 2a034c1..31981f7 100644
--- a/Upstart/Prototype.php
+++ b/Upstart/Prototype.php
@@ -6,6 +6,7 @@
 use ReflectionClass;
 use Modulus\Support\Extendable;
 use Modulus\Framework\Exceptions\CannotExtendClassException;
+use Modulus\Framework\Exceptions\ClassDoesNotExistException;
 
 class Prototype
 {
@@ -19,6 +20,8 @@ class Prototype
    */
   public function bind(string $class, string $method, Closure $closure)
   {
+    if (!class_exists($class)) throw new ClassDoesNotExistException("Class {$class} does not exist");
+
     if (!in_array(
       Extendable::class,
       array_keys((new ReflectionClass($class))->getTraits()))
@@ -39,6 +42,8 @@ public function bind(string $class, string $method, Closure $closure)
    */
   public function static(string $class, string $method, Closure $closure)
   {
+    if (!class_exists($class)) throw new ClassDoesNotExistException("Class {$class} does not exist");
+
     if (!in_array(
       Extendable::class,
       array_keys((new ReflectionClass($class))->getTraits()))
diff --git a/composer.json b/composer.json
index 8a4dc9b..ffc157b 100644
--- a/composer.json
+++ b/composer.json
@@ -1,7 +1,7 @@
 {
   "name": "modulusphp/framework",
   "description": "Framework component for Modulus",
-  "version": "1.9.8.10",
+  "version": "1.9.8.11",
   "license": "MIT",
   "type": "package",
   "authors": [{