diff --git a/src/classes.py b/src/classes.py
index 16e7c61..dd28e5c 100755
--- a/src/classes.py
+++ b/src/classes.py
@@ -76,9 +76,6 @@ class Motor:
                  "busypoll", "idlepoll", "pv", "default_position", 'logger',
                  "_epics_wrapper")
 
-    # This will store PV objects for each PV param and is populated by the init function
-    _param_to_pv = {}
-
     # Motor record fields
     fields = {
         'readpv': 'RBV',
@@ -124,6 +121,8 @@ class Motor:
         self.default_position = default_position
         self._epics_wrapper = CaprotoWrapper(TIMEOUT)
 
+        # This will store PV objects for each PV param and is populated by the init function
+        self._param_to_pv = {}
         for (access_name, pvname) in self._get_pvs().items():
             self._epics_wrapper.connect_pv(pvname)
             self._param_to_pv[access_name] = pvname