diff --git a/tests/testthat/test-dataframe.R b/tests/testthat/test-dataframe.R
index 05abec793..b61c94ff9 100644
--- a/tests/testthat/test-dataframe.R
+++ b/tests/testthat/test-dataframe.R
@@ -591,15 +591,9 @@ test_that("conversion of datatype Null to R works", {
     df2$to_data_frame(),
     data.frame(x = 1:2, y = c(NA, NA))
   )
-
-  df3 = pl$DataFrame(x = 1, y = NULL)
-  expect_identical(
-    df3$to_data_frame(),
-    data.frame(x = 1, y = NA)
-  )
   expect_identical(
-    as.data.frame(df3),
-    data.frame(x = 1, y = NA)
+    as.data.frame(df2),
+    data.frame(x = 1:2, y = c(NA, NA))
   )
 })