diff --git a/prysm.sh b/prysm.sh
index 6a10130cc..0dd368e9f 100755
--- a/prysm.sh
+++ b/prysm.sh
@@ -230,7 +230,7 @@ esac
 
 verify $process
 
-if [[ $2 == --download-only ]]; then
+if [[ "$#" -gt 1 ]] && [[ $2 == --download-only ]]; then
     color "37" "Only download operation is requested, done."
     exit 0
 fi