diff --git a/contracts/switchboard/default-switchboards/SwitchboardBase.sol b/contracts/switchboard/default-switchboards/SwitchboardBase.sol
index d7da3f43b..81ef41b57 100644
--- a/contracts/switchboard/default-switchboards/SwitchboardBase.sol
+++ b/contracts/switchboard/default-switchboards/SwitchboardBase.sol
@@ -146,7 +146,7 @@ abstract contract SwitchboardBase is ISwitchboard, AccessControlExtended {
     /**
      * @notice Signals sibling switchboard for given `siblingChainSlug_`.
      * @dev This function is expected to be only called by governance
-     * @param siblingChainSlug_ The slug of the sibling chain whos switchboard is being connected.
+     * @param siblingChainSlug_ The slug of the sibling chain whose switchboard is being connected.
      * @param siblingSwitchboard_ The switchboard address deployed on `siblingChainSlug_`
      */
     function updateSibling(