diff --git a/libxfs/topology.c b/libxfs/topology.c
index 706eed0..94adb5b 100644
--- a/libxfs/topology.c
+++ b/libxfs/topology.c
@@ -292,4 +292,5 @@
 {
 	get_device_topology(&xi->data, &ft->data, force_overwrite);
 	get_device_topology(&xi->rt, &ft->rt, force_overwrite);
+	get_device_topology(&xi->log, &ft->log, force_overwrite);
 }
diff --git a/libxfs/topology.h b/libxfs/topology.h
index ba0c8f6..fa0a23b 100644
--- a/libxfs/topology.h
+++ b/libxfs/topology.h
@@ -20,6 +20,7 @@
 struct fs_topology {
 	struct device_topology	data;
 	struct device_topology	rt;
+	struct device_topology	log;
 };
 
 void