diff --git a/lib/ansible/modules/cloud/amazon/ec2_asg.py b/lib/ansible/modules/cloud/amazon/ec2_asg.py
index 36cb733aec..ee81214608 100644
--- a/lib/ansible/modules/cloud/amazon/ec2_asg.py
+++ b/lib/ansible/modules/cloud/amazon/ec2_asg.py
@@ -611,6 +611,14 @@ def replace(connection, module):
     instances = props['instances']
     if replace_instances:
         instances = replace_instances
+        
+    #check if min_size/max_size/desired capacity have been specified and if not use ASG values
+    if min_size is None:
+        min_size = as_group.min_size
+    if max_size is None:
+        max_size = as_group.max_size
+    if desired_capacity is None:
+        desired_capacity = as_group.desired_capacity
     # check to see if instances are replaceable if checking launch configs
 
     new_instances, old_instances = get_instances_by_lc(props, lc_check, instances)
@@ -633,14 +641,7 @@ def replace(connection, module):
     if not old_instances:
         changed = False
         return(changed, props)
-
-    #check if min_size/max_size/desired capacity have been specified and if not use ASG values
-    if min_size is None:
-        min_size = as_group.min_size
-    if max_size is None:
-        max_size = as_group.max_size
-    if desired_capacity is None:
-        desired_capacity = as_group.desired_capacity
+      
     # set temporary settings and wait for them to be reached
     # This should get overwritten if the number of instances left is less than the batch size.