diff --git a/specs/core/0_beacon-chain.md b/specs/core/0_beacon-chain.md
index 975874d51..c9c2531ea 100644
--- a/specs/core/0_beacon-chain.md
+++ b/specs/core/0_beacon-chain.md
@@ -389,7 +389,7 @@ class DepositData(Container):
 
 ```python
 class CompactCommittee(Container):
-    pubkeys: List[Bytes48, MAX_VALIDATORS_PER_COMMITTEE]
+    pubkeys: List[BLSPubkey, MAX_VALIDATORS_PER_COMMITTEE]
     compact_validators: List[uint64, MAX_VALIDATORS_PER_COMMITTEE]
 ```