diff --git a/protocol/oracle-manager/contracts/mocks/MockExternalNode.sol b/protocol/oracle-manager/contracts/mocks/MockExternalNode.sol
index 536ec1a492..bcc22d029a 100644
--- a/protocol/oracle-manager/contracts/mocks/MockExternalNode.sol
+++ b/protocol/oracle-manager/contracts/mocks/MockExternalNode.sol
@@ -34,9 +34,7 @@ contract MockExternalNode is IExternalNode {
         return nodeDefinition.nodeType == NodeDefinition.NodeType.EXTERNAL;
     }
 
-    function supportsInterface(
-        bytes4 interfaceId
-    ) public view virtual override(IERC165) returns (bool) {
-        return true
+    function supportsInterface(bytes4) public view virtual override(IERC165) returns (bool) {
+        return true;
     }
 }