diff --git a/moto/iam/models.py b/moto/iam/models.py
index e34ca7cf8..08a1eb36a 100755
--- a/moto/iam/models.py
+++ b/moto/iam/models.py
@@ -288,6 +288,7 @@ class AWSManagedPolicy(ManagedPolicy):
 
 # AWS defines some of its own managed policies and we periodically
 # import them via `make aws_managed_policies`
+# FIXME: Takes about 40ms at import time
 aws_managed_policies = [
     AWSManagedPolicy.from_data(name, d)
     for name, d in json.loads(aws_managed_policies_data).items()