diff --git a/tests/testthat/_snaps/archive.md b/tests/testthat/_snaps/archive.md
index 9eab6e9f..6e010da0 100644
--- a/tests/testthat/_snaps/archive.md
+++ b/tests/testthat/_snaps/archive.md
@@ -2,7 +2,7 @@
 
     Code
       res <- dumb_ex %>% as_epi_archive()
-    Condition
+    Condition <epiprocess__compactify_default_removed_rows>
       Warning:
       Found rows that appear redundant based on last (version of each) observation carried forward; these rows have been removed to 'compactify' and save space:
       Key: <geo_value, time_value, version>
diff --git a/tests/testthat/test-archive.R b/tests/testthat/test-archive.R
index 1791d870..7bde9b46 100644
--- a/tests/testthat/test-archive.R
+++ b/tests/testthat/test-archive.R
@@ -55,7 +55,7 @@ dumb_ex <- data.frame(
   version = as.Date(c("2020-01-01", "2020-01-02"))
 )
 test_that("new_epi_archive correctly detects and warns about compactification", {
-  expect_snapshot(res <- dumb_ex %>% as_epi_archive())
+  expect_snapshot(res <- dumb_ex %>% as_epi_archive(), cnd_class = TRUE)
 })
 
 test_that("other_keys can only contain names of the data.frame columns", {