diff --git a/adafruit_ht16k33/matrix.py b/adafruit_ht16k33/matrix.py
old mode 100755
new mode 100644
diff --git a/adafruit_ht16k33/segments.py b/adafruit_ht16k33/segments.py
old mode 100755
new mode 100644
index 81cb94d..fe2d3db
--- a/adafruit_ht16k33/segments.py
+++ b/adafruit_ht16k33/segments.py
@@ -340,6 +340,7 @@ def _push(self, char: str):
 
     def _put(self, char: str, index: int = 0):
         """Put a character at the specified place."""
+        # pylint: disable=too-many-return-statements
         if not 0 <= index <= 3:
             return
         char = char.lower()
@@ -362,6 +363,12 @@ def _put(self, char: str, index: int = 0):
         elif char == ";":
             self._set_buffer(4, 0x00)
             return
+        elif char in "lL":
+            self._set_buffer(index, 0b00111000)
+            return
+        elif char in "oO":
+            self._set_buffer(index, 0b00111111)
+            return
         else:
             return
         self._set_buffer(index, NUMBERS[character])