diff --git a/INSTRUCTION.md b/INSTRUCTION.md
index d768fccb..73b85220 100644
--- a/INSTRUCTION.md
+++ b/INSTRUCTION.md
@@ -218,7 +218,7 @@ Your contribution will be pushed to git automatically.
   - Scan FQDN on "[Query Database](https://sercxi.nnpaefp7pkadbxxkhz2agtbv2a4g5sgo2fbmv3i7czaua354334uqqad.onion/ss/tool_qdb.php)" webpage.
   - Or: Use add-on "[Ĉu ligoj estas vundeblaj al MITM-atako?](subfiles/about.ismm.md)"
   - Or: Use "_MITM test_" API.
-    - e.g. `curl -x socks5h://127.0.0.1:9050 -k --http2 -X POST -F 'f=www.emsisoft.com' (API URL)ismitm.php`
+    - e.g. `curl -x socks5h://127.0.0.1:9050 -k --http2 -X POST -F 'f=www.emsisoft.com' (API URL)is_mitm.php`
 - Anti-TOR
   - Use "_Is it blocking Tor?_" API.
     - e.g. `curl -x socks5h://127.0.0.1:9050 -k --http2 -X POST -F 'f=www.emsisoft.com' (API URL)is_antitor.php`