diff --git a/adafruit_ht16k33/segments.py b/adafruit_ht16k33/segments.py
index 0d2fc45..6f9a976 100755
--- a/adafruit_ht16k33/segments.py
+++ b/adafruit_ht16k33/segments.py
@@ -250,7 +250,8 @@ def _put(self, char, index=0):
         elif char in '0123456789':
             character = ord(char) - 48
         elif char == ' ':
-            character = 0x00
+            self._set_buffer(index, 0x00)
+            return
         elif char == ':':
             self._set_buffer(4, 0x02)
             return
diff --git a/docs/examples.rst b/docs/examples.rst
index ab9c3a8..6744dae 100644
--- a/docs/examples.rst
+++ b/docs/examples.rst
@@ -3,10 +3,14 @@ Simple test
 
 Ensure your device works with this simple test.
 
-.. literalinclude:: ../examples/matrix.py
-    :caption: examples/matrix.py
+.. literalinclude:: ../examples/ht16k33_matrix_simpletest.py
+    :caption: examples/ht16k33_matrix_simpletest.py
     :linenos:
 
-.. literalinclude:: ../examples/segments.py
-    :caption: examples/segments.py
+.. literalinclude:: ../examples/ht16k33_segments_simpletest.py
+    :caption: examples/ht16k33_segments_simpletest.py
+    :linenos:
+
+.. literalinclude:: ../examples/ht16k33_bicolor24_simpletest.py
+    :caption: examples/ht16k33_bicolor24_simpletest.py
     :linenos:
diff --git a/examples/bicolor24.py b/examples/ht16k33_bicolor24_simpletest.py
similarity index 100%
rename from examples/bicolor24.py
rename to examples/ht16k33_bicolor24_simpletest.py
diff --git a/examples/matrix.py b/examples/ht16k33_matrix_simpletest.py
similarity index 100%
rename from examples/matrix.py
rename to examples/ht16k33_matrix_simpletest.py
diff --git a/examples/segments.py b/examples/ht16k33_segments_simpletest.py
similarity index 100%
rename from examples/segments.py
rename to examples/ht16k33_segments_simpletest.py