diff --git a/src/TR.jl b/src/TR.jl
index 5c0a5f6..6a321a3 100644
--- a/src/TR.jl
+++ b/src/TR.jl
@@ -236,7 +236,7 @@ and returns "b, lambda_min".
 function TRLooCVNum(TR::TRSVD, y, lambdaInit=1)
     
 function pressfunc(lambdaval)
-@inline pressval = TRPress(TR, lambdaval[1])
+@inline pressval = TRPress(TR, y, lambdaval[1])
 
 return pressval
 end
@@ -264,7 +264,7 @@ end
 Finds regularization paramter value minimising the PRESS-statistic
 and returns "b, lambda_min".
 """
-function TRGCVNum(TR::TRSVD, lambdaInit=1)
+function TRGCVNum(TR::TRSVD, y, lambdaInit=1)
     
 function gcvfunc(lambdaval)
 @inline gcvval = TRGCV(TR, y, lambdaval[1]);