diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4a0c834..14ed71a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -17,6 +17,8 @@ This project does not follow semantic versioning.
 
 ### Fixed
 
+* fixed a bad logic for arguments parsing
+
 ### Security
 
 ## [20.06] - 2020-06-03
diff --git a/make-csr.sh b/make-csr.sh
index d7abb20..afdf209 100755
--- a/make-csr.sh
+++ b/make-csr.sh
@@ -204,8 +204,8 @@ main() {
     [ "$1" = "-V" ] || [ "$1" = "--version" ] && show_version && exit 0
 
     if [ -t 0 ]; then
-        # We have STDIN, so we should have 2 arguments
-        [ "$#" -eq 2 ] || error "invalid argument(s)"
+        # We have STDIN, so we should at least 2 arguments
+        [ "$#" -ge 2 ] || error "invalid argument(s)"
 
         # read VHOST from first argument
         VHOST="$1"