diff --git a/beacon_chain/networking/eth2_network.nim b/beacon_chain/networking/eth2_network.nim
index 7be298115..8dd800341 100644
--- a/beacon_chain/networking/eth2_network.nim
+++ b/beacon_chain/networking/eth2_network.nim
@@ -804,7 +804,7 @@ func chunkMaxSize[T](): uint32 =
   when T is ForkySignedBeaconBlock:
     when T is phase0.SignedBeaconBlock or T is altair.SignedBeaconBlock:
       MAX_CHUNK_SIZE
-    elif T is bellatrix.SignedBeaconBlock:
+    elif T is bellatrix.SignedBeaconBlock or T is capella.SignedBeaconBlock:
       MAX_CHUNK_SIZE_BELLATRIX
     else:
       {.fatal: "what's the chunk size here?".}
diff --git a/beacon_chain/sync/sync_protocol.nim b/beacon_chain/sync/sync_protocol.nim
index 32a365c32..952855da0 100644
--- a/beacon_chain/sync/sync_protocol.nim
+++ b/beacon_chain/sync/sync_protocol.nim
@@ -14,7 +14,7 @@ import
   std/[options, tables, sets, macros],
   chronicles, chronos, snappy/codec,
   libp2p/switch,
-  ../spec/datatypes/[phase0, altair, bellatrix],
+  ../spec/datatypes/[phase0, altair, bellatrix, capella],
   ../spec/[helpers, forks, network],
   ".."/[beacon_clock],
   ../networking/eth2_network,
@@ -106,6 +106,12 @@ proc readChunkPayload*(
       return ok newClone(ForkedSignedBeaconBlock.init(res.get))
     else:
       return err(res.error)
+  elif contextBytes == peer.network.forkDigests.capella:
+    let res = await readChunkPayload(conn, peer, capella.SignedBeaconBlock)
+    if res.isOk:
+      return ok newClone(ForkedSignedBeaconBlock.init(res.get))
+    else:
+      return err(res.error)
   else:
     return neterr InvalidContextBytes