diff --git a/bids/variables/entities.py b/bids/variables/entities.py
index <HASH>..<HASH> 100644
--- a/bids/variables/entities.py
+++ b/bids/variables/entities.py
@@ -46,9 +46,13 @@ class RunNode(Node):
         super(RunNode, self).__init__('run', entities)
 
     def get_info(self):
-
-        return RunInfo(self.entities, self.duration, self.repetition_time,
-                       self.image_file)
+        # Note: do not remove the dict() call! self.entities is a SQLAlchemy
+        # association_proxy mapping, and without the conversion, the connection
+        # to the DB persists, causing problems on Python 3.5 if we try to clone
+        # a RunInfo or any containing object.
+        entities = dict(self.entities)
+        return RunInfo(entities, self.duration,
+                       self.repetition_time, self.image_file)
 
 
 # Stores key information for each Run.
fixes BIDSVariable deepcopy error by ensuring we have no connection to the DB