diff --git a/packages/dev/core/src/Materials/index.ts b/packages/dev/core/src/Materials/index.ts
index b3fd866574a..b0595d81689 100644
--- a/packages/dev/core/src/Materials/index.ts
+++ b/packages/dev/core/src/Materials/index.ts
@@ -26,5 +26,6 @@ export * from "./shadowDepthWrapper";
 export * from "./drawWrapper";
 export * from "./materialPluginBase";
 export * from "./materialPluginManager";
+export * from "./materialPluginEvent";
 export * from "./material.detailMapConfiguration";
 export * from "./materialPluginFactoryExport";