diff --git a/acme.sh b/acme.sh
index c9cd0d1..3a01c13 100755
--- a/acme.sh
+++ b/acme.sh
@@ -207,7 +207,7 @@ _dlg_versions() {
 
   echo "socat:"
   if _exists "socat"; then
-    socat -h 2>&1
+    socat -V 2>&1
   else
     _debug "socat doesn't exists."
   fi