diff --git a/noid.py b/noid.py
index 9e8937a..2a27f9b 100644
--- a/noid.py
+++ b/noid.py
@@ -91,6 +91,7 @@ class Minter(Persistent):
         #      - add the counter to saclist
         #      - substract pctr from t
         self.active_counters = []
+        self.inactive_counters = []
         maxcounters = 293
         self.percounter = int(self.oatop / maxcounters + 1)
         t = self.oatop