diff --git a/internal/system/op.go b/internal/system/op.go
index fcfc29b..7d29377 100644
--- a/internal/system/op.go
+++ b/internal/system/op.go
@@ -94,6 +94,7 @@ func (sys *I) Commit() error {
 		// sp is set to nil when all ops are applied
 		if sp != nil {
 			// rollback partial commit
+			fmsg.VPrintf("commit faulted after %d ops, rolling back partial commit", len(sp.ops))
 			if err := sp.Revert(&Criteria{nil}); err != nil {
 				fmsg.Println("errors returned reverting partial commit:", err)
 			}