diff --git a/tools/virsh.pod b/tools/virsh.pod
index 677931f4ab2abdffdbb4b4177ba4de1d96cb8c62..59213c69df9d50ee135d781f49c5d274143b3e88 100644
--- a/tools/virsh.pod
+++ b/tools/virsh.pod
@@ -1794,7 +1794,8 @@ on inactive domains. Volume deletion is only attempted after the domain is
 undefined; if not all of the requested volumes could be deleted, the
 error message indicates what still remains behind. If a volume path is not
 found in the domain definition, it's treated as if the volume was successfully
-deleted.
+deleted. Only volumes managed by libvirt in storage pools can be removed this
+way.
 (See B<domblklist> for list of target names associated to a domain).
 Example: --storage vda,/path/to/storage.img