diff --git a/Makefile b/Makefile
index d49582cf..7e597cfa 100644
--- a/Makefile
+++ b/Makefile
@@ -31,7 +31,7 @@ pypi:
 	@twine upload dist/*
 
 pylint:
-	@pylint -j 8 --rcfile=.pylintrc pyvlx test/*.py *.py examples/*.py
+	@pylint --rcfile=.pylintrc pyvlx test/*.py *.py examples/*.py
 
 pydocstyle:
 	 @pydocstyle pyvlx test/*.py test/*.py *.py examples/*.py
diff --git a/pyvlx/frames/frame_get_all_nodes_information.py b/pyvlx/frames/frame_get_all_nodes_information.py
index 7d923292..9cbae0bd 100644
--- a/pyvlx/frames/frame_get_all_nodes_information.py
+++ b/pyvlx/frames/frame_get_all_nodes_information.py
@@ -101,7 +101,7 @@ def serial_number(self, serial_number):
             self._serial_number = bytes(8)
             return
         self._serial_number = b''
-        for elem in (serial_number.split(":")):
+        for elem in serial_number.split(":"):
             self._serial_number += bytes.fromhex(elem)
         if len(self._serial_number) != 8:
             raise PyVLXException("could_not_parse_serial_number")
diff --git a/pyvlx/frames/frame_get_node_information.py b/pyvlx/frames/frame_get_node_information.py
index 8fac03c8..5cb0225f 100644
--- a/pyvlx/frames/frame_get_node_information.py
+++ b/pyvlx/frames/frame_get_node_information.py
@@ -115,7 +115,7 @@ def serial_number(self, serial_number):
             self._serial_number = bytes(8)
             return
         self._serial_number = b''
-        for elem in (serial_number.split(":")):
+        for elem in serial_number.split(":"):
             self._serial_number += bytes.fromhex(elem)
         if len(self._serial_number) != 8:
             raise PyVLXException("could_not_parse_serial_number")