diff --git a/src/gui.rs b/src/gui.rs
index 640ecd5..8c2e7be 100644
--- a/src/gui.rs
+++ b/src/gui.rs
@@ -1,7 +1,6 @@
 use iced::widget::{button, column, text};
 use iced::executor;
 use iced::keyboard;
-use iced::event;
 use iced::subscription;
 use iced::{Alignment, Element, Application, Settings, Subscription, Theme, Command};
 
@@ -138,9 +137,8 @@ impl Application for Main {
             }
          },
          Message::EventOccurred(event) => {
-            eprintln!("{:?}", event);
             match event {
-               iced::event::Event::Keyboard(keyboard::Event::KeyPressed{ // TODO key released
+               iced::event::Event::Keyboard(keyboard::Event::KeyPressed{
                   key_code,
                   modifiers: _,
                   ..
@@ -148,6 +146,15 @@ impl Application for Main {
                   self.keys_down.push(key_code);
                   self.keys_down.dedup();
                },
+               iced::event::Event::Keyboard(keyboard::Event::KeyReleased{
+                  key_code,
+                  ..
+               }) => {
+                  match self.keys_down.iter().position(|x| *x == key_code) {
+                     Some(idx) => { self.keys_down.remove(idx); },
+                     None => {},
+                  };
+               },
                _ => {},
             }
          },
diff --git a/src/stream.rs b/src/stream.rs
index bfee73e..5c72e77 100644
--- a/src/stream.rs
+++ b/src/stream.rs
@@ -226,7 +226,7 @@ impl OutputStream for OutputStreamFormatted {
 }
 
 fn sprintf(x: &String, v: Vec<char>) -> Vec<char> {
-   let mut reg = Handlebars::new();
+   let reg = Handlebars::new();
    return reg.render_template(x, &json!({
       "VALUE": v.iter().collect::<String>(),
       "ms_since_epoch": SystemTime::now().duration_since(UNIX_EPOCH).unwrap().as_millis(),