diff --git a/Libraries/GenC/GenCMsg/GenCMsg.bs b/Libraries/GenC/GenCMsg/GenCMsg.bs
index 299d18d..cf014bd 100644
--- a/Libraries/GenC/GenCMsg/GenCMsg.bs
+++ b/Libraries/GenC/GenCMsg/GenCMsg.bs
@@ -308,6 +308,8 @@ instance (GenCRepr a gcrBytes, GenAllCDecls a, Bits a bBits) =>
     let credits :: Reg (UInt 8)
         credits = head rxCredits
 
+    -- TODO: A more efficient approach would be to make credits a CReg.
+    -- See discussion on https://github.com/B-Lang-org/bsc-contrib/pull/22
     restoreCredits :: FIFOF ()
     restoreCredits <- mkFIFOF