diff --git a/src/model/guild/role.rs b/src/model/guild/role.rs
index 6c630022e1b..333562b1d5e 100644
--- a/src/model/guild/role.rs
+++ b/src/model/guild/role.rs
@@ -232,6 +232,10 @@ mod bool_as_option_unit {
         fn visit_none<E: Error>(self) -> Result<Self::Value, E> {
             Ok(true)
         }
+
+        fn visit_unit<E: Error>(self) -> Result<Self::Value, E> {
+            Ok(true)
+        }
     }
 }