diff --git a/crates/text/src/anchor.rs b/crates/text/src/anchor.rs
index ceec2937277360fb97695c28d2af106f11208ae1..3a1ab499fb50c2722e034942dde58aa09c8bef49 100644
--- a/crates/text/src/anchor.rs
+++ b/crates/text/src/anchor.rs
@@ -97,6 +97,8 @@ impl Anchor {
     pub fn is_valid(&self, buffer: &BufferSnapshot) -> bool {
         if *self == Anchor::MIN || *self == Anchor::MAX {
             true
+        } else if self.buffer_id != Some(buffer.remote_id) {
+            false
         } else {
             let fragment_id = buffer.fragment_id_for_anchor(self);
             let mut fragment_cursor = buffer.fragments.cursor::<(Option<&Locator>, usize)>();