diff --git a/URL-signing.md b/URL-signing.md
index 9176941..0b4da65 100644
--- a/URL-signing.md
+++ b/URL-signing.md
@@ -27,7 +27,7 @@ $ go run main.go "test" "https://www.google.fr/images/srpr/logo11w.png"
 result:  RYifAJRfbhsitJeOrDNxWURCCkPsVR4ihCPXNv-ePbA=
 ```
 
-## Bash
+## OpenSSL
 
 ```shell
 $ echo -n "https://www.google.fr/images/srpr/logo11w.png" | openssl dgst -sha256 -hmac "test" -binary|base64| tr '/+' '_-'