diff --git a/beacon_chain/ssz.nim b/beacon_chain/ssz.nim
index f0ea63cd0..b6a529da6 100644
--- a/beacon_chain/ssz.nim
+++ b/beacon_chain/ssz.nim
@@ -166,7 +166,7 @@ template enumerateSubFields(holder, fieldVar, body: untyped) =
 
 func writeVarSizeType(w: var SszWriter, value: auto) {.gcsafe.}
 
-func beginRecord(w: var SszWriter, TT: type): auto =
+func beginRecord*(w: var SszWriter, TT: type): auto =
   type T = TT
   when isFixedSize(T):
     FixedSizedWriterCtx()