diff --git a/mrdna/model/CanonicalNucleotideAtoms.py b/mrdna/model/CanonicalNucleotideAtoms.py
index 4cade46478ef149f71fdb78fabc6e15499d3544b..fa28af0b9fb2240b18b9d4bf2304c9e6dec06e74 100644
--- a/mrdna/model/CanonicalNucleotideAtoms.py
+++ b/mrdna/model/CanonicalNucleotideAtoms.py
@@ -1,8 +1,12 @@
 import json
 import numpy as np
 import copy
-from arbdmodel.coords import rotationAboutAxis
-from arbdmodel import Group, PointParticle, ParticleType
+try:
+    from arbdmodel.coords import rotationAboutAxis
+    from arbdmodel import Group, PointParticle, ParticleType
+except:
+    from ..marbdmodel.coords import rotationAboutAxis
+    from ..marbdmodel import Group, PointParticle, ParticleType   
 from .. import get_resource_path
 
 seqComplement = dict(A='T',G='C')
diff --git a/mrdna/model/arbdmodel.py b/mrdna/model/arbdmodel.py
index 8219ed633b23f07b79959f0bb812f2a772a91eaf..3d6543cf9bcebfa467bca4c1559fe01fa18783c4 100644
--- a/mrdna/model/arbdmodel.py
+++ b/mrdna/model/arbdmodel.py
@@ -1,4 +1,4 @@
-from ..arbdmodel import *
+from ..marbdmodel import *
 
 from sys import stderr
 stderr.write("WARNING: the module 'mrdna.model.arbdmodel' has been deprecated. Please change your scripts to use 'mrdna.arbdmodel'\n")
diff --git a/mrdna/model/nbPot.py b/mrdna/model/nbPot.py
index 1e71f1dfd52f50d0aa6a87e5944af9ba37b8d128..85572a8487541727f16dfd733e3bb6ae765ea5d8 100644
--- a/mrdna/model/nbPot.py
+++ b/mrdna/model/nbPot.py
@@ -2,8 +2,10 @@ import numpy as np
 import scipy.optimize as opt
 from scipy.interpolate import interp1d
 from scipy.signal import savgol_filter as savgol
-
-from arbdmodel.interactions import NonbondedScheme
+try:
+    from arbdmodel.interactions import NonbondedScheme
+except:
+    from ..marbdmodel.interactions import NonbondedScheme
 from .. import get_resource_path
 from ..config import CACHE_DIR