diff --git a/src/ModuleInitialization.php b/src/ModuleInitialization.php
index 0b4d9e3..9f9a8e3 100644
--- a/src/ModuleInitialization.php
+++ b/src/ModuleInitialization.php
@@ -68,6 +68,8 @@ public function get_classes( $dir ) {
 		$class_finder = Discover::in( $dir );
 		// Only fetch classes.
 		$class_finder->classes();
+		// Disable inheritance chain resolution
+		$class_finder->withoutChains();
 
 		// If we are in production or staging, cache the class loader to improve performance.
 		if ( $this->should_use_cache() ) {