diff --git a/R/data.table.R b/R/data.table.R
index aaa0f92fd..d0b940ae1 100644
--- a/R/data.table.R
+++ b/R/data.table.R
@@ -2929,11 +2929,9 @@ setDT = function(x, keep.rownames=FALSE, key=NULL, check.names=FALSE) {
     rn = if (!identical(keep.rownames, FALSE)) rownames(x) else NULL
     setattr(x, "row.names", .set_row_names(nrow(x)))
     if (check.names) setattr(x, "names", make.names(names(x), unique=TRUE))
-
     # fix for #1078 and #1128, see .resetclass() for explanation.
     setattr(x, "class", .resetclass(x, 'data.frame'))
     setalloccol(x)
-
     if (!is.null(rn)) {
       nm = c(if (is.character(keep.rownames)) keep.rownames[1L] else "rn", names(x))
       x[, (nm[1L]) := rn]