diff --git a/crates/turborepo-scm/src/git.rs b/crates/turborepo-scm/src/git.rs
index c3c133d52b9e87..8a2fdc3663214f 100644
--- a/crates/turborepo-scm/src/git.rs
+++ b/crates/turborepo-scm/src/git.rs
@@ -39,10 +39,13 @@ impl SCM {
             Self::Git(git) => {
                 match git.changed_files(turbo_root, from_commit, to_commit, include_uncommitted) {
                     Ok(files) => Ok(ChangedFiles::Some(files)),
-                    Err(e) if allow_unknown_objects => {
+                    Err(ref error @ Error::Git(ref message, _))
+                        if allow_unknown_objects
+                            && message.contains("unknown revision or path") =>
+                    {
                         warn!(
                             "unable to detect git range, assuming all files have changed: {}",
-                            e
+                            error
                         );
                         Ok(ChangedFiles::All)
                     }