diff --git a/src/objective.jl b/src/objective.jl
index 9623d48a742..d29ad28c11d 100644
--- a/src/objective.jl
+++ b/src/objective.jl
@@ -685,7 +685,7 @@ julia> @variable(model, x[1:2]);
 julia> @objective(model, Min, x[1]^2 + x[1] * x[2])
 x[1]² + x[1]*x[2]
 
-julia> set_objective_coefficient(model, [x[1], x[1]], [x[1], x[2]], [2, 3])
+julia> set_objective_coefficients(model, [x[1], x[1]], [x[1], x[2]], [2, 3])
 
 julia> objective_function(model)
 2 x[1]² + 3 x[1]*x[2]
diff --git a/src/variables.jl b/src/variables.jl
index 76c6eac65b5..01ee8d09898 100644
--- a/src/variables.jl
+++ b/src/variables.jl
@@ -2595,7 +2595,7 @@ y
 julia> @constraint(model, con, 2x + 3x + 4y <= 2)
 con : 5 x + 4 y ≤ 2
 
-julia> set_normalized_coefficients(con, [x, y], [6, 7])
+julia> set_normalized_coefficients([con, con], [x, y], [6, 7])
 
 julia> con
 con : 6 x + 7 y ≤ 2
@@ -2752,7 +2752,7 @@ julia> @variable(model, x[1:2]);
 julia> @constraint(model, con, 2x[1]^2 + 3 * x[1] * x[2] + x[2] <= 2)
 con : 2 x[1]² + 3 x[1]*x[2] + x[2] ≤ 2
 
-julia> set_normalized_coefficient(con, [x[1], x[1]], [x[1], x[2]], [4, 5])
+julia> set_normalized_coefficient([con, con], [x[1], x[1]], [x[1], x[2]], [4, 5])
 
 julia> con
 con : 4 x[1]² + 5 x[1]*x[2] + x[2] ≤ 2