diff --git a/r2/r2/lib/stats.py b/r2/r2/lib/stats.py
index 64d29a532..7f5aaef40 100644
--- a/r2/r2/lib/stats.py
+++ b/r2/r2/lib/stats.py
@@ -53,7 +53,8 @@ class TimingStatBuffer:
     def flush(self):
         """Yields accumulated timing and counter data and resets the buffer."""
         data, self.data = self.data, collections.defaultdict(complex)
-        for k, v in data.iteritems():
+        while data:
+            k, v = data.popitem()
             total_time, count = v.real, v.imag
             yield k, str(int(count)) + '|c'
             divisor = count or 1