diff --git a/R/annotate.R b/R/annotate.R
index 25328d6..01f8dde 100644
--- a/R/annotate.R
+++ b/R/annotate.R
@@ -381,10 +381,10 @@ clioannotationdf2list <- function(x, write_empty_fields=FALSE) {
   }
 
   # turns it into a list of lists
-  i64class=class(x$bodyid)
+  i64cols=sapply(x, inherits, 'integer64')
   x=purrr::transpose(x)
-  fix_bodyid <- function(x) {class(x[['bodyid']]) <-i64class; x}
-  x=purrr::map(x, fix_bodyid)
+  fix_bodyid <- function(x, cols='bodyid') {for(col in cols) class(x[[col]]) <-'integer64'; x}
+  x=purrr::map(x, fix_bodyid, cols=which(i64cols))
   purge_empty <- function(x) purrr::keep(x, .p=function(x) length(x)>0 && !any(is.na(x)) && any(nzchar(x)))
   if(!write_empty_fields)
     x=purrr::map(x, purge_empty)
diff --git a/tests/testthat/test-clio.R b/tests/testthat/test-clio.R
index 76c3e5d..a515e3a 100644
--- a/tests/testthat/test-clio.R
+++ b/tests/testthat/test-clio.R
@@ -99,7 +99,7 @@ test_that("manc_point_annotations/clioannotationdf2list works", {
       entry_nerve = c("None", "None", "None", "None"),
       exit_nerve = c("CvC",
                      "CvC", "CvC", "CvC"),
-      group = c(NA, 10223, 10223, 10245),
+      group = manc_ids(c(NA, 10223, 10223, 10245), integer64 = T, unique = F),
       user = c(
         "jefferis@gmail.com",
         "jefferis@gmail.com",
@@ -124,7 +124,7 @@ test_that("manc_point_annotations/clioannotationdf2list works", {
   )
 
  expect_known_hash(cliolist <- clioannotationdf2list(ansforuploadsample),
-                    "b57d0a3fdf")
+                    "9783889b09")
   # a row with only bodyid should be dropped
   ansforuploadsample[5,'bodyid']=1
   expect_equal(clioannotationdf2list(ansforuploadsample), cliolist)