diff --git a/MANIFEST.in b/MANIFEST.in
index 74215c3..e524258 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1,2 +1,3 @@
+include LICENSE
+include py.typed
 include README.md
-include LICENSE
\ No newline at end of file
diff --git a/py.typed b/py.typed
new file mode 100644
index 0000000..e69de29
diff --git a/setup.py b/setup.py
index ba0be30..6da8137 100644
--- a/setup.py
+++ b/setup.py
@@ -31,5 +31,8 @@
     entry_points={
         'console_scripts': ['apertium-streamparser=streamparser:main'],
     },
+    package_data={
+        'streamparser': ['py.typed'],
+    },
     py_modules=['streamparser'],
 )
diff --git a/streamparser.py b/streamparser.py
index d9c140a..41b9a3d 100644
--- a/streamparser.py
+++ b/streamparser.py
@@ -15,7 +15,7 @@
 __credits__ = ['Sushain K. Cherivirala', 'Kevin Brubeck Unhammer']
 __license__ = 'GPLv3+'
 __status__ = 'Production'
-__version__ = '5.0.2'
+__version__ = '5.0.3'
 
 import fileinput
 import functools
@@ -192,8 +192,8 @@ def parse(stream, with_text=False):  # type: (Iterator[str], bool) -> Iterator[U
         with_text (bool, optional): A boolean defining whether to output preceding text with each lexical unit.
 
     Yields:
-        LexicalUnit: The next lexical unit found in the character stream. (if withText is False)
-        (str, LexicalUnit): The next lexical unit found in the character stream and the the text that seperated it from the prior unit in a tuple. (if withText is True)
+        LexicalUnit: The next lexical unit found in the character stream. (if with_text is False)
+        (str, LexicalUnit): The next lexical unit found in the character stream and the the text that seperated it from the prior unit in a tuple. (if with_text is True)
     """
 
     buffer = ''