diff --git a/devicemapper/devmapper.go b/devicemapper/devmapper.go
index 486ec15..c0caec5 100644
--- a/devicemapper/devmapper.go
+++ b/devicemapper/devmapper.go
@@ -341,8 +341,8 @@ func UdevSetSyncSupport(enable bool) bool {
 
 // Useful helper for cleanup
 func RemoveDevice(name string) error {
-	log.Debugf("[devmapper] RemoveDevice START")
-	defer log.Debugf("[devmapper] RemoveDevice END")
+	log.Debugf("[devmapper] RemoveDevice START(%s)", name)
+	defer log.Debugf("[devmapper] RemoveDevice END(%s)", name)
 	task, err := TaskCreateNamed(DeviceRemove, name)
 	if task == nil {
 		return err
diff --git a/devicemapper/devmapper_wrapper.go b/devicemapper/devmapper_wrapper.go
index aff8446..63c55d9 100644
--- a/devicemapper/devmapper_wrapper.go
+++ b/devicemapper/devmapper_wrapper.go
@@ -86,6 +86,7 @@ const (
 	DmUdevDisableSubsystemRulesFlag = C.DM_UDEV_DISABLE_SUBSYSTEM_RULES_FLAG
 	DmUdevDisableDiskRulesFlag      = C.DM_UDEV_DISABLE_DISK_RULES_FLAG
 	DmUdevDisableOtherRulesFlag     = C.DM_UDEV_DISABLE_OTHER_RULES_FLAG
+	DmUdevDisableLibraryFallback    = C.DM_UDEV_DISABLE_LIBRARY_FALLBACK
 )
 
 var (