diff --git a/ci.R b/ci.R
index d67323be7..d900b3f50 100644
--- a/ci.R
+++ b/ci.R
@@ -21,7 +21,7 @@ install_if_needed <- function(package_to_install) {
 
   if(length(package_path) == 0){
     # Only install if not present
-    install.packages(package_to_install)
+    install.packages(package_to_install, repos = "https://cran.rstudio.com/")
   }
 }
 
@@ -32,6 +32,7 @@ ci_setup <- function() {
 
 ci_check <- function() {
   install_if_needed("devtools")
+  install_if_needed("roxygen2")
   devtools::check()
 }
 
diff --git a/tests/testthat/test-freq.R b/tests/testthat/test-freq.R
index 9cc0ab25b..0611d0672 100755
--- a/tests/testthat/test-freq.R
+++ b/tests/testthat/test-freq.R
@@ -47,6 +47,8 @@ test_that("frequency table works", {
   expect_output(suppressWarnings(print(freq(microorganisms$fullname))))
   # mo
   expect_output(print(freq(septic_patients$mo)))
+  # rsi
+  expect_output(print(freq(septic_patients$amox)))
   # integer
   expect_output(print(freq(septic_patients$age)))
   # date