diff --git a/tools/generate-argo-cli-commands.py b/tools/generate-argo-cli-commands.py
index a76004edb..c1c4e1df9 100644
--- a/tools/generate-argo-cli-commands.py
+++ b/tools/generate-argo-cli-commands.py
@@ -203,7 +203,7 @@ def _validate_scale(scale: str) -> Optional[str]:
                 title=row[ind_title],
             )
         params = {
-            "source": row[ind_source].rstrip("/"),
+            "source": row[ind_source].rstrip("/") + "/",
             "target": row[ind_target],
             "version-basemaps-cli": "latest",
             "version-topo-imagery":"v1.1.0-3-g8fe8211",