diff --git a/adept/tf1d/__init__.py b/adept/tf1d/__init__.py
index a9f9752..e69de29 100644
--- a/adept/tf1d/__init__.py
+++ b/adept/tf1d/__init__.py
@@ -1 +0,0 @@
-from adept.tf1d import helpers
diff --git a/adept/tf1d/pushers.py b/adept/tf1d/pushers.py
index d3dc4fd..2ae2175 100644
--- a/adept/tf1d/pushers.py
+++ b/adept/tf1d/pushers.py
@@ -5,7 +5,7 @@
 import numpy as np
 import equinox as eqx
 
-from theory.electrostatic import get_complex_frequency_table
+from adept.theory.electrostatic import get_complex_frequency_table
 
 
 def get_envelope(p_wL, p_wR, p_L, p_R, ax):
diff --git a/theory/__init__.py b/adept/theory/__init__.py
similarity index 100%
rename from theory/__init__.py
rename to adept/theory/__init__.py
diff --git a/theory/electrostatic.py b/adept/theory/electrostatic.py
similarity index 100%
rename from theory/electrostatic.py
rename to adept/theory/electrostatic.py