diff --git a/vignettes/fetchNASIS.Rmd b/vignettes/fetchNASIS.Rmd
index c687999f..3b21846e 100644
--- a/vignettes/fetchNASIS.Rmd
+++ b/vignettes/fetchNASIS.Rmd
@@ -176,7 +176,7 @@ knitr::opts_chunk$set(
   collapse = TRUE,
   comment = "#>",
   echo = FALSE,
-  eval = (nchar(soilDBdata_pedon_dsn) > 0)
+  eval = (nchar(soilDBdata_pedon_dsn) > 0) && file.exists(soilDBdata_pedon_dsn)
 )
 ```