diff --git a/src/Data/CSV/Sip.hs b/src/Data/CSV/Sip.hs
index 42ddb10..f73db20 100644
--- a/src/Data/CSV/Sip.hs
+++ b/src/Data/CSV/Sip.hs
@@ -153,7 +153,7 @@ encodeCSV
   :: Monad m
   => [[T.Text]]
   -- ^ the data being encoded, organized into rows and fields
-  -> ConduitT () BS.ByteString m ()
+  -> ConduitT o BS.ByteString m ()
 encodeCSV csv = sourceList csv .| encodeRows
 
 -- | encode an entire CSV file
@@ -161,7 +161,7 @@ encodeRawCSV
   :: Monad m
   => [[BS.ByteString]]
   -- ^ the data being encoded, organized into rows and fields
-  -> ConduitT () BS.ByteString m ()
+  -> ConduitT o BS.ByteString m ()
 encodeRawCSV csv = sourceList csv .| encodeRawRows
 
 -- | Writes a stream of Text-based rows to a CSV file