diff --git a/src/encoder.rs b/src/encoder.rs
index 00f04db..e930522 100644
--- a/src/encoder.rs
+++ b/src/encoder.rs
@@ -50,6 +50,8 @@ impl Sevensegment {
             't'|'T' => [false, false, false, true, true, true, true, false].to_vec(),
             'u'|'U' => [false, false, true, true, true, false, false, false].to_vec(),
             'y'|'Y' => [false, true, true, true, false, true, true, false].to_vec(),
+            '_' => [false, false, false, true, false, false, false, false].to_vec(),
+            '.' => [false, false, false, false, false, false, false, true].to_vec(),
             _ => [false, false, false, false, false, false, false, false].to_vec(),
         };
     }
diff --git a/src/main.rs b/src/main.rs
index b0e6ae9..5d01432 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -23,7 +23,7 @@ fn main() {
     let mut outstream = stream.try_clone().unwrap();
     let mut reader = BufReader::new(stream);
     let mut instructions;
-    let input = String::from("0123456789aBcDeFhijlnOpTuY ");
+    let input = String::from("0123456789aBcDeFhijlnOpTuY_. ");
 
     let mut state = Encodestate::new();