diff --git a/lib/ansible/modules/cloud/amazon/rds_instance.py b/lib/ansible/modules/cloud/amazon/rds_instance.py
index 6c6081af5f..3c8b4401d8 100644
--- a/lib/ansible/modules/cloud/amazon/rds_instance.py
+++ b/lib/ansible/modules/cloud/amazon/rds_instance.py
@@ -277,7 +277,7 @@ options:
     performance_insights_retention_period:
         description:
           - The amount of time, in days, to retain Performance Insights data. Valid values are 7 or 731.
-        type: str
+        type: int
     port:
         description:
           - The port number on which the instances accept connections.