diff --git a/test/D1_Interval_Test.jl b/test/D1_Interval_Test.jl
index 02025a7..25cb787 100644
--- a/test/D1_Interval_Test.jl
+++ b/test/D1_Interval_Test.jl
@@ -45,7 +45,7 @@ solveBnB!(solver,model5)
 c5 = getobjval(model5)
 @test c5 == 1.5625
 
-solver.Preprocess =  (feas_Pre,nsBox,UBDg,k_int,pos,opt) -> (false,nsBox)
+solver.Preprocess =  (feas_Pre,nsBox,UBDg,k_int,pos,opt,LBDn,UBDn,x,y) -> (false,nsBox)
 solver.Lower_Prob = (X,k,p,opt,temp) -> [opt[1](X).lo,mid.(X),true,[]]
 solver.Upper_Prob = (X,k,p,opt,temp) -> [((k==2) ? opt[1](X).hi : Inf),mid.(X),false,[]]
 model4 = BnBModel(X)