diff --git a/src/sugar.jl b/src/sugar.jl
index d108203e12..ff94c7cf94 100644
--- a/src/sugar.jl
+++ b/src/sugar.jl
@@ -296,7 +296,7 @@ grad = gradient(ReverseWithPrimal, mul, [2.0], Const([3.0]))
     enz_args = Union{Expr,Symbol}[]
     resargs = Union{Expr,Symbol[]
     for (i, (arg, act, state, genty)) in enumerate(zip(rargs, acts, states, gentys))
-        shad = Symbol("shad_$idx")
+        shad = Symbol("shad_$i")
         if genty <: Enzyme.Const
             push!(enz_args, arg)
             push!(resargs, :nothing)