diff --git a/crates/ledger-store/tests/spec_store.rs b/crates/ledger-store/tests/spec_store.rs
index 447724b..5f13dca 100644
--- a/crates/ledger-store/tests/spec_store.rs
+++ b/crates/ledger-store/tests/spec_store.rs
@@ -125,13 +125,28 @@ fn line_types(dir: &Path) -> Vec<String> {
         .collect()
 }
 
-/// Every file under `dir` (relative path → bytes).
+/// Whether `p` is the live SQLite database or one of its companions.
+fn is_live_database(p: &Path) -> bool {
+    let name = p.file_name().unwrap().to_string_lossy().into_owned();
+    let db = db_file();
+    name == db
+        || ["-wal", "-shm", "-journal"]
+            .iter()
+            .any(|x| name == format!("{db}{x}"))
+}
+
+/// Every file under `dir` (relative path → bytes), the live database and
+/// its companions left out.
 fn tree(dir: &Path) -> BTreeMap<PathBuf, Vec<u8>> {
     fn walk(root: &Path, d: &Path, out: &mut BTreeMap<PathBuf, Vec<u8>>) {
         for e in std::fs::read_dir(d).unwrap() {
             let p = e.unwrap().path();
             if p.is_dir() {
                 walk(root, &p, out);
+            } else if p.parent() == Some(root) && is_live_database(&p) {
+                // An open SQLite connection holds byte-range locks on its
+                // database file on Windows: a plain read is refused. The
+                // tests compare the journal, blobs and kept-aside files.
             } else {
                 out.insert(
                     p.strip_prefix(root).unwrap().to_path_buf(),