diff --git a/abl/abducer/abducer_base.py b/abl/abducer/abducer_base.py
index c5527f9..b7e6526 100644
--- a/abl/abducer/abducer_base.py
+++ b/abl/abducer/abducer_base.py
@@ -10,13 +10,10 @@
 #
 # ================================================================#
 
-import sys
-sys.path.append('/home/huwc/ABL-Package/abl/')
-
 import abc
 import numpy as np
 from zoopt import Dimension, Objective, Parameter, Opt
-from utils.utils import confidence_dist, flatten, reform_idx, hamming_dist
+from ..utils.utils import confidence_dist, flatten, reform_idx, hamming_dist
 
 class AbducerBase(abc.ABC):
     def __init__(self, kb, dist_func='hamming', zoopt=False):
diff --git a/abl/abducer/kb.py b/abl/abducer/kb.py
index 42a5f6c..f7d8091 100644
--- a/abl/abducer/kb.py
+++ b/abl/abducer/kb.py
@@ -17,7 +17,7 @@ import numpy as np
 
 from collections import defaultdict
 from itertools import product, combinations
-from utils.utils import flatten, reform_idx, hamming_dist, check_equal, to_hashable, hashable_to_list
+from ..utils.utils import flatten, reform_idx, hamming_dist, check_equal, to_hashable, hashable_to_list
 
 from multiprocessing import Pool