diff --git a/plugins/modules/ec2_launch_template.py b/plugins/modules/ec2_launch_template.py
index fac77ca4298..6611cbcff68 100644
--- a/plugins/modules/ec2_launch_template.py
+++ b/plugins/modules/ec2_launch_template.py
@@ -312,6 +312,13 @@
       For any VPC other than Default, you must use I(security_group_ids).
     type: list
     elements: str
+  source_version:
+    description: >
+      The version number of the launch template version on which to base the new version.
+      The new version inherits the same launch parameters as the source version, except for parameters that you explicity specify.
+      Snapshots applied to the block device mapping are ignored when creating a new version unless they are explicitly included.
+    type: string
+    default: latest
   tags:
     type: dict
     description: