diff --git a/Data/ByteString/Char8.hs b/Data/ByteString/Char8.hs
index f773d832..d547b464 100644
--- a/Data/ByteString/Char8.hs
+++ b/Data/ByteString/Char8.hs
@@ -46,6 +46,7 @@ module Data.ByteString.Char8 (
 
         -- * The @ByteString@ type
         ByteString,
+        StrictByteString,
 
         -- * Introducing and eliminating 'ByteString's
         empty,
diff --git a/Data/ByteString/Lazy/Char8.hs b/Data/ByteString/Lazy/Char8.hs
index bed62d4d..70639108 100644
--- a/Data/ByteString/Lazy/Char8.hs
+++ b/Data/ByteString/Lazy/Char8.hs
@@ -32,6 +32,7 @@ module Data.ByteString.Lazy.Char8 (
 
         -- * The @ByteString@ type
         ByteString,
+        LazyByteString,
 
         -- * Introducing and eliminating 'ByteString's
         empty,