diff --git a/src/ncc/Classes/PhpExtension/Templates/CliTemplate.php b/src/ncc/Classes/PhpExtension/Templates/CliTemplate.php
index 33d1e4e..2d834dd 100644
--- a/src/ncc/Classes/PhpExtension/Templates/CliTemplate.php
+++ b/src/ncc/Classes/PhpExtension/Templates/CliTemplate.php
@@ -59,7 +59,7 @@
             $release_executable = new BuildConfiguration('release_executable',
                 'build' . DIRECTORY_SEPARATOR . 'release' . DIRECTORY_SEPARATOR . AssemblyConstants::ASSEMBLY_NAME
             );
-            $release_executable->setBuildType(BuildOutputType::EXECUTABLE);
+            $release_executable->setBuildType(BuildOutputType::EXECUTABLE->value);
             $release_executable->setOption(BuildConfigurationOptions::NCC_CONFIGURATION, 'release');
             $project_manager->getProjectConfiguration()->getBuild()->addBuildConfiguration($release_executable);
 
@@ -68,7 +68,7 @@
                 'build' . DIRECTORY_SEPARATOR . 'debug' . DIRECTORY_SEPARATOR . AssemblyConstants::ASSEMBLY_NAME
             );
             $debug_executable->setDefinedConstant('DEBUG', '1');
-            $debug_executable->setBuildType(BuildOutputType::EXECUTABLE);
+            $debug_executable->setBuildType(BuildOutputType::EXECUTABLE->value);
             $debug_executable->setOption(BuildConfigurationOptions::NCC_CONFIGURATION, 'debug');
             $project_manager->getProjectConfiguration()->getBuild()->addBuildConfiguration($debug_executable);
 
diff --git a/src/ncc/Enums/Types/BuildOutputType.php b/src/ncc/Enums/Types/BuildOutputType.php
index 3bb413a..4336126 100644
--- a/src/ncc/Enums/Types/BuildOutputType.php
+++ b/src/ncc/Enums/Types/BuildOutputType.php
@@ -22,8 +22,8 @@
 
     namespace ncc\Enums\Types;
 
-    final class BuildOutputType
+    enum BuildOutputType : string
     {
-        public const NCC_PACKAGE = 'ncc';
-        public const EXECUTABLE = 'executable';
+        case NCC_PACKAGE = 'ncc';
+        case EXECUTABLE = 'executable';
     }
\ No newline at end of file
diff --git a/src/ncc/Managers/ProjectManager.php b/src/ncc/Managers/ProjectManager.php
index c33b5a8..f5b60ac 100644
--- a/src/ncc/Managers/ProjectManager.php
+++ b/src/ncc/Managers/ProjectManager.php
@@ -162,8 +162,8 @@
             {
                 CompilerExtensions::PHP->value => match (strtolower($configuration->getBuildType()))
                 {
-                    BuildOutputType::NCC_PACKAGE => (new NccCompiler($this))->build($build_configuration, $options),
-                    BuildOutputType::EXECUTABLE => (new ExecutableCompiler($this))->build($build_configuration, $options),
+                    BuildOutputType::NCC_PACKAGE->value => (new NccCompiler($this))->build($build_configuration, $options),
+                    BuildOutputType::EXECUTABLE->value => (new ExecutableCompiler($this))->build($build_configuration, $options),
                     default => throw new BuildException(sprintf('php cannot produce the build type \'%s\'', $configuration->getBuildType())),
                 },
 
@@ -618,14 +618,14 @@
             $ncc_debug_configuration = new ProjectConfiguration\Build\BuildConfiguration('debug_ncc',
                 'build' . DIRECTORY_SEPARATOR . 'debug' . DIRECTORY_SEPARATOR . AssemblyConstants::ASSEMBLY_PACKAGE
             );
-            $ncc_debug_configuration->setBuildType(BuildOutputType::NCC_PACKAGE);
+            $ncc_debug_configuration->setBuildType(BuildOutputType::NCC_PACKAGE->value);
             $ncc_debug_configuration->setDependencies($require_dev);
             $build->addBuildConfiguration($ncc_debug_configuration);
 
             $executable_debug_configuration = new ProjectConfiguration\Build\BuildConfiguration('debug_executable',
                 'build' . DIRECTORY_SEPARATOR . 'debug' . DIRECTORY_SEPARATOR . AssemblyConstants::ASSEMBLY_NAME
             );
-            $executable_debug_configuration->setBuildType(BuildOutputType::EXECUTABLE);
+            $executable_debug_configuration->setBuildType(BuildOutputType::EXECUTABLE->value);
             $executable_debug_configuration->setOption(BuildConfigurationOptions::NCC_CONFIGURATION, 'debug_ncc');
             $executable_debug_configuration->setDependencies($require_dev);
             $build->addBuildConfiguration($executable_debug_configuration);
@@ -634,14 +634,14 @@
             $ncc_release_configuration = new ProjectConfiguration\Build\BuildConfiguration('release_ncc',
                 'build' . DIRECTORY_SEPARATOR . 'release' . DIRECTORY_SEPARATOR . AssemblyConstants::ASSEMBLY_PACKAGE . 'ncc'
             );
-            $ncc_release_configuration->setBuildType(BuildOutputType::NCC_PACKAGE);
+            $ncc_release_configuration->setBuildType(BuildOutputType::NCC_PACKAGE->value);
             $build->addBuildConfiguration($ncc_release_configuration);
 
             $executable_release_configuration = new ProjectConfiguration\Build\BuildConfiguration('release_executable',
                 'build' . DIRECTORY_SEPARATOR . 'release' . DIRECTORY_SEPARATOR . AssemblyConstants::ASSEMBLY_NAME
             );
             $executable_release_configuration->setOption(BuildConfigurationOptions::NCC_CONFIGURATION, 'release_ncc');
-            $executable_release_configuration->setBuildType(BuildOutputType::EXECUTABLE);
+            $executable_release_configuration->setBuildType(BuildOutputType::EXECUTABLE->value);
             $build->addBuildConfiguration($executable_release_configuration);
 
             // Create an update source for the project
diff --git a/src/ncc/Objects/ProjectConfiguration/Build/BuildConfiguration.php b/src/ncc/Objects/ProjectConfiguration/Build/BuildConfiguration.php
index 94786d9..324e89b 100644
--- a/src/ncc/Objects/ProjectConfiguration/Build/BuildConfiguration.php
+++ b/src/ncc/Objects/ProjectConfiguration/Build/BuildConfiguration.php
@@ -107,7 +107,7 @@
         public function __construct(string $name, string $output)
         {
             $this->name = $name;
-            $this->build_type = BuildOutputType::NCC_PACKAGE;
+            $this->build_type = BuildOutputType::NCC_PACKAGE->value;
             $this->output = $output;
             $this->options = [];
             $this->define_constants = [];
@@ -462,7 +462,7 @@
 
             $object = new BuildConfiguration($name, $output);
 
-            $object->build_type = Functions::array_bc($data, 'build_type') ?? BuildOutputType::NCC_PACKAGE;
+            $object->build_type = Functions::array_bc($data, 'build_type') ?? BuildOutputType::NCC_PACKAGE->value;
             $object->options = Functions::array_bc($data, 'options') ?? [];
             $object->define_constants = Functions::array_bc($data, 'define_constants') ?? [];
             $object->exclude_files = Functions::array_bc($data, 'exclude_files') ?? [];