diff --git a/jnius/__init__.py b/jnius/__init__.py
index 5f7b7a68..4f2b5f8f 100644
--- a/jnius/__init__.py
+++ b/jnius/__init__.py
@@ -39,6 +39,7 @@ def equals(self, other):
 
 
 # from https://gist.github.com/tito/09c42fb4767721dc323d
+import os
 if "ANDROID_ARGUMENT" in os.environ:
     # on android, catch all exception to ensure about a jnius.detach
     import threading