diff --git a/src/JuMP.jl b/src/JuMP.jl
index 732f9d8485b..7d8433b9da1 100644
--- a/src/JuMP.jl
+++ b/src/JuMP.jl
@@ -1381,7 +1381,7 @@ PrecompileTools.@compile_workload begin
             @expressions(model, begin
                 a, -1 + x1 + x2
                 b, 1 + x1^2 + x2
-                nl_expr, sin(x)
+                nl_expr, sin(x1)
             end)
             @constraints(model, begin
                 c1, a >= 0