diff --git a/README.md b/README.md
index 755f55a..b37670a 100644
--- a/README.md
+++ b/README.md
@@ -1211,7 +1211,7 @@ sys.stdout.buffer.write(urllib.request.urlopen(\"$url\", timeout=10, context=ctx
 ```
 
 Example: Installing gsocket with purl:
-```
+```sh
 source <(purl https://raw.githubusercontent.com/hackerschoice/hackshell/main/hackshell.sh) \
 && bin curl \
 && bash -c "$(curl -fsSL https://gsocket.io/y)" \
@@ -1222,9 +1222,12 @@ Using OpenSSL, download only:
 ```sh
 surl() {
     local r="${1#*://}"
+    local opts=("-quiet" "-ign_eof")
     IFS=/ read -r host query <<<"${r}"
+    openssl s_client --help 2>&1| grep -qFm1 -- -ignore_unexpected_eof && opts+=("-ignore_unexpected_eof")
+    openssl s_client --help 2>&1| grep -qFm1 -- -verify_quiet && opts+=("-verify_quiet")
     echo -en "GET /${query} HTTP/1.0\r\nHost: ${host%%:*}\r\n\r\n" \
-	| openssl s_client -ignore_unexpected_eof -verify_quiet -quiet -ign_eof -connect "${host%%:*}:443" \
+	| openssl s_client "${opts[@]}" -connect "${host%%:*}:443" \
 	| sed '1,/^\r\{0,1\}$/d'
 }
 # surl ipinfo.io