diff --git a/README.md b/README.md
index f13e1e54..5f936f94 100644
--- a/README.md
+++ b/README.md
@@ -62,6 +62,11 @@ declare module 'react-native-svg' {
     className?: string;
   }
 }
+declare module "phosphor-react-native" {
+  interface IconProps extends DefaultIconProps {
+    className?: string;
+  }
+}
 ```
 
 ### Props