diff --git a/generator/src/main/resources/sunday.raml b/generator/src/main/resources/sunday.raml
index 5374f909b..1b470816d 100644
--- a/generator/src/main/resources/sunday.raml
+++ b/generator/src/main/resources/sunday.raml
@@ -187,10 +187,10 @@ annotationTypes:
 
   problemBaseUri:
     type: string
-    allowedTargets: [API, Overlay]
+    allowedTargets: [Library, API, Overlay]
   problemBaseUriParams:
     type: object
-    allowedTargets: [API, Overlay]
+    allowedTargets: [Library, API, Overlay]
   problemTypes:
     type: ResponseProblemTypes
     allowedTargets: [API, Extension, Library, Overlay]