diff --git a/src/index.ts b/src/index.ts
index 9d621fb69..327dafd24 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -191,6 +191,7 @@ export * from './util/locking/WrappedExpiringResourceLocker';
 
 // Util
 export * from './util/AsyncHandler';
+export * from './util/ContentTypes';
 export * from './util/HeaderUtil';
 export * from './util/PathUtil';
 export * from './util/QuadUtil';
diff --git a/src/util/ContentTypes.ts b/src/util/ContentTypes.ts
index f4fdf0f48..ffd7c5c77 100644
--- a/src/util/ContentTypes.ts
+++ b/src/util/ContentTypes.ts
@@ -3,6 +3,6 @@ export const TEXT_TURTLE = 'text/turtle';
 export const APPLICATION_OCTET_STREAM = 'application/octet-stream';
 export const APPLICATION_SPARQL_UPDATE = 'application/sparql-update';
 
-// Internal (non-exposed) content types
+// Internal content types (not exposed over HTTP)
 export const INTERNAL_ALL = 'internal/*';
 export const INTERNAL_QUADS = 'internal/quads';