diff --git a/adafruit_minimqtt.py b/adafruit_minimqtt.py
index 063a065..5fa7b92 100644
--- a/adafruit_minimqtt.py
+++ b/adafruit_minimqtt.py
@@ -612,8 +612,10 @@ def reconnect(self, resub_topics=True):
                 self.logger.debug(
                     "Attempting to resubscribe to previously subscribed topics."
                 )
-            while self._subscribed_topics:
-                feed = self._subscribed_topics.pop()
+            subscribed_topics = self._subscribed_topics.copy()
+            self._subscribed_topics = []
+            while subscribed_topics:
+                feed = subscribed_topics.pop()
                 self.subscribe(feed)
 
     def loop_forever(self):