diff --git a/build/generate-pocketmine-yml-property-consts.php b/build/generate-pocketmine-yml-property-consts.php
index 90342a75f..dcc574f8a 100644
--- a/build/generate-pocketmine-yml-property-consts.php
+++ b/build/generate-pocketmine-yml-property-consts.php
@@ -101,6 +101,15 @@ fwrite($file, <<<'DOC'
 DOC
 );
 fwrite($file, "final class YmlServerProperties{\n");
+fwrite($file, <<<'CONSTRUCTOR'
+
+	private function __construct(){
+		//NOOP
+	}
+
+
+CONSTRUCTOR
+);
 foreach(Utils::stringifyKeys($constants) as $constName => $propertyName){
 	fwrite($file, "\tpublic const $constName = '$propertyName';\n");
 }
diff --git a/src/ServerProperties.php b/src/ServerProperties.php
index aad26d242..ddbbd8134 100644
--- a/src/ServerProperties.php
+++ b/src/ServerProperties.php
@@ -29,6 +29,10 @@ namespace pocketmine;
  */
 final class ServerProperties{
 
+	private function __construct(){
+		//NOOP
+	}
+
 	public const AUTO_SAVE = "auto-save";
 	public const DEFAULT_WORLD_GENERATOR = "level-type";
 	public const DEFAULT_WORLD_GENERATOR_SETTINGS = "generator-settings";
diff --git a/src/YmlServerProperties.php b/src/YmlServerProperties.php
index 7d088b13c..9bd203eef 100644
--- a/src/YmlServerProperties.php
+++ b/src/YmlServerProperties.php
@@ -30,6 +30,11 @@ namespace pocketmine;
  * Do not edit this file manually.
  */
 final class YmlServerProperties{
+
+	private function __construct(){
+		//NOOP
+	}
+
 	public const ALIASES = 'aliases';
 	public const ANONYMOUS_STATISTICS = 'anonymous-statistics';
 	public const ANONYMOUS_STATISTICS_ENABLED = 'anonymous-statistics.enabled';