diff --git a/b2/b2.go b/b2/b2.go
index e96fcf8b7..13fb296e9 100644
--- a/b2/b2.go
+++ b/b2/b2.go
@@ -615,7 +615,7 @@ func (f *Fs) Rmdir() error {
 
 // Precision of the remote
 func (f *Fs) Precision() time.Duration {
-	return time.Second
+	return time.Millisecond
 }
 
 // deleteByID deletes a file version given Name and ID