diff --git a/R/app_config.R b/R/app_config.R
index 1e359a6d..fece6d03 100644
--- a/R/app_config.R
+++ b/R/app_config.R
@@ -9,7 +9,7 @@
 #'
 #' @noRd
 app_sys <- function(...) {
-  system.file(..., package = "riskassessment")
+  system.file(..., package = "riskassessment", mustWork = TRUE)
 }