diff --git a/README.md b/README.md
index 9075b577..df70c808 100644
--- a/README.md
+++ b/README.md
@@ -126,6 +126,8 @@ export interface ThrowableWeapon {
 
 InversifyJS needs to use the type as identifiers at runtime. We use symbols as identifiers but you can also use classes and or string literals.
 
+PLEASE MAKE SURE TO PLACE THIS TYPES DECLARATION IN A SEPARATE FILE. (see bug #1455)
+
 ```ts
 // file types.ts