diff --git a/pydyton/communities.py b/pydyton/communities.py
index 0d678be8f5b640d86bee15943a710333e954bfab..5f6acb45568b27b01eb442c166fb7c6f1a7cf677 100644
--- a/pydyton/communities.py
+++ b/pydyton/communities.py
@@ -4,7 +4,7 @@ from itertools import product
 import networkx as nx
 from community import best_partition as louvain_partition
 
-from core import TickProcess
+from .core import TickProcess
 
 class EpochCommunity(TickProcess):
     def __init__(self, epoch=1, **kwargs):