diff --git a/matlab/utilities/dataset/makedataset.m b/matlab/utilities/dataset/makedataset.m
index 9eb4cb396..2b4653008 100644
--- a/matlab/utilities/dataset/makedataset.m
+++ b/matlab/utilities/dataset/makedataset.m
@@ -238,4 +238,12 @@ normalization_matrix = diag(1./sqrt(diag(DatasetInfo.descriptive.covariance)));
 DatasetInfo.descriptive.correlation = normalization_matrix*DatasetInfo.descriptive.covariance*normalization_matrix;
 
 % Compute autocorrelation function.
-DatasetInfo.descriptive.autocovariance = nanautocovariance(DynareDataset.data, DynareOptions.ar);
\ No newline at end of file
+DatasetInfo.descriptive.autocovariance = nanautocovariance(DynareDataset.data, DynareOptions.ar);
+
+% Save raw data.
+DatasetInfo.rawdata = DynareDataset.data;
+
+% Prefilter the data if needed (remove the mean).
+if isequal(DynareOptions.prefilter, 1)
+    DynareDataset = DynareDataset.detrend();
+end