diff --git a/inst/tests/tests.Rraw b/inst/tests/tests.Rraw
index 828b64685..f79bec0d7 100644
--- a/inst/tests/tests.Rraw
+++ b/inst/tests/tests.Rraw
@@ -20585,8 +20585,9 @@ test(2294.72,
      warning = "For the following variables, the 'label' value was already in the data: [VCharB (label: C3), VIntA (label: 2)]")
 
 # setDT no longer leaks class modification to origin copy, #4784
-d1 = data.frame(a=1)
+d1 = data.frame(a=1, row.names='b')
 d2 = d1
 setDT(d2)
 test(2295.1, !is.data.table(d1))
-test(2295.2, is.data.table(d2))
+test(2295.2, rownames(d1), 'b')
+test(2295.3, is.data.table(d2))