diff --git a/crates/atuin-server-postgres/migrations/20240702094825_idx_cache_index.sql b/crates/atuin-server-postgres/migrations/20240702094825_idx_cache_index.sql
new file mode 100644
index 00000000000..d1a7b194367
--- /dev/null
+++ b/crates/atuin-server-postgres/migrations/20240702094825_idx_cache_index.sql
@@ -0,0 +1 @@
+create unique index store_idx_cache_uniq on store_idx_cache(user_id, host, tag);