diff --git a/changelogs/fragments/53669-ec2_asg_fix_race_condition.yml b/changelogs/fragments/53669-ec2_asg_fix_race_condition.yml
new file mode 100644
index 00000000000..81a5d33e753
--- /dev/null
+++ b/changelogs/fragments/53669-ec2_asg_fix_race_condition.yml
@@ -0,0 +1,2 @@
+bugfixes:
+  - ec2_asg - Fix scenario where min_size can end up passing None type to boto
diff --git a/lib/ansible/modules/cloud/amazon/ec2_asg.py b/lib/ansible/modules/cloud/amazon/ec2_asg.py
index 52987279dec..d973ede1e1e 100644
--- a/lib/ansible/modules/cloud/amazon/ec2_asg.py
+++ b/lib/ansible/modules/cloud/amazon/ec2_asg.py
@@ -1488,6 +1488,8 @@ def terminate_batch(connection, replace_instances, initial_instances, leftovers=
     if num_new_inst_needed == 0:
         decrement_capacity = True
         if as_group['MinSize'] != min_size:
+            if min_size is None:
+                min_size = as_group['MinSize']
             updated_params = dict(AutoScalingGroupName=as_group['AutoScalingGroupName'], MinSize=min_size)
             update_asg(connection, **updated_params)
             module.debug("Updating minimum size back to original of %s" % min_size)