diff --git a/src/attributes.jl b/src/attributes.jl
index 678f2da05d..b8d650ab1d 100644
--- a/src/attributes.jl
+++ b/src/attributes.jl
@@ -665,7 +665,7 @@ MOI.set(optimizer, MOI.LazyConstraintCallback(), callback_data -> begin
         set = # computes set
         MOI.submit(optimizer, MOI.LazyConstraint(callback_data), func, set)
     end
-end
+end)
 ```
 """
 struct LazyConstraintCallback <: AbstractCallback end