diff --git a/ext/SciMLBaseForwardDiffExt.jl b/ext/SciMLBaseForwardDiffExt.jl
index dfbbc438e..5a03c3b06 100644
--- a/ext/SciMLBaseForwardDiffExt.jl
+++ b/ext/SciMLBaseForwardDiffExt.jl
@@ -7,7 +7,7 @@ import SciMLBase:
     wrapfun_oop, wrapfun_iip, isdualtype, value, DualEltypeChecker,
     AbstractTimeseriesSolution, NonlinearProblem, NonlinearLeastSquaresProblem,
     ODEProblem, SDEProblem, RODEProblem, DDEProblem, PDEProblem, DAEProblem,
-    RecursiveArrayTools, totallength, sse, anyeltypedual
+    RecursiveArrayTools, totallength, sse, anyeltypedual, reduce_tup
 
 eltypedual(x) = eltype(x) <: ForwardDiff.Dual
 isdualtype(::Type{<:ForwardDiff.Dual}) = true
@@ -407,4 +407,4 @@ function SciMLBase.totallength(x::ForwardDiff.Dual)
            sum(SciMLBase.totallength, ForwardDiff.partials(x))
 end
 
-end
\ No newline at end of file
+end