diff --git a/README.md b/README.md
index 946a91a..54df0ab 100644
--- a/README.md
+++ b/README.md
@@ -12,7 +12,7 @@ cargo install --git https://git.zumepro.cz/michal.prochazka/tulflash
 ## Flashing Intel HEX binaries
 
 ```bash
-# All OSes, automatically detects all ports
+# All OSes, automatically detects the correct serial port
 tulflash write <path-to-hex>
 ```