diff --git a/magma/testing/coroutine.py b/magma/testing/coroutine.py
index 71bac0efbb..95dbc07d74 100644
--- a/magma/testing/coroutine.py
+++ b/magma/testing/coroutine.py
@@ -1,5 +1,5 @@
 from magma.simulator import PythonSimulator
-from magma.bit_vector import BitVector
+from bit_vector import BitVector
 
 class Coroutine:
     """