diff --git a/examples/MDF/simple.py b/examples/MDF/simple.py
index 43816363..8b773c79 100644
--- a/examples/MDF/simple.py
+++ b/examples/MDF/simple.py
@@ -14,7 +14,7 @@
 )
 
 import sys
-
+import os
 
 def main():
     mod = Model(id="Simple")
diff --git a/examples/MDF/states.py b/examples/MDF/states.py
index 32579d36..175ee6c2 100644
--- a/examples/MDF/states.py
+++ b/examples/MDF/states.py
@@ -4,7 +4,7 @@
 
 from modeci_mdf.mdf import *
 import sys
-
+import os
 
 def main():
     mod = Model(id="States")