diff --git a/src/main.rs b/src/main.rs
index cd7661f57abc899b226c987141915925c95ac393..5040cc93c6acf2c0f7509a2861f7df43b783d92e 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -54,12 +54,13 @@ fn main() {
     let port_name = if let Some(port_name) = args.port {
         port_name.to_owned()
     } else if let Some(p) = get_first_stm32_serial_port() {
+        debug!("found STM32 device on {}", p);
         p
     } else {
         error!("FATAL: no STM32 serial port found, your device may not be connected properly");
         std::process::exit(1);
     };
-    debug!("connecting to for serial port {}...", port_name);
+    debug!("connecting to serial port {}...", port_name);
     let mut port = serialport::new(port_name, args.baud_rate)
         .open()
         .expect("Failed to open serial port");