diff --git a/specs/core/0_beacon-chain.md b/specs/core/0_beacon-chain.md
index cc4500d3f..968098895 100644
--- a/specs/core/0_beacon-chain.md
+++ b/specs/core/0_beacon-chain.md
@@ -298,7 +298,7 @@ class Validator(Container):
     activation_eligibility_epoch: Epoch  # When criteria for activation were met
     activation_epoch: Epoch
     exit_epoch: Epoch
-    withdrawable_epoch: Epoch # When validator can withdraw or transfer funds
+    withdrawable_epoch: Epoch  # When validator can withdraw or transfer funds
 ```
 
 #### `Crosslink`