diff --git a/src/index.ts b/src/index.ts
index cea5cb6..509b92e 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -2,4 +2,5 @@
 // Licensed under the MIT license.
 
 export { FeatureManager } from "./featureManager";
-export { ConfigurationMapFeatureFlagProvider, ConfigurationObjectFeatureFlagProvider, IFeatureFlagProvider } from "./featureProvider";
+export { ConfigurationMapFeatureFlagProvider, ConfigurationObjectFeatureFlagProvider, IFeatureFlagProvider } from "./featureProvider";
+export { IFeatureFilter } from "./filter/FeatureFilter";