diff --git a/src/aff_expr.jl b/src/aff_expr.jl
index d04f995d264..e0edcdf6ec1 100644
--- a/src/aff_expr.jl
+++ b/src/aff_expr.jl
@@ -807,7 +807,7 @@ julia> model = Model();
 
 julia> @variable(model, x);
 
-julia> f = 2.0 * x_moi + 1.0
+julia> f = 2.0 * index(x) + 1.0
 1.0 + 2.0 MOI.VariableIndex(1)
 
 julia> jump_function(model, f)