diff --git a/.gitignore b/.gitignore
index 10cf7146..576839b1 100644
--- a/.gitignore
+++ b/.gitignore
@@ -11,6 +11,9 @@ dist/
 
 /config/
 /data/
+# per-package runtime data dirs (e.g. packages/core/data/<uin>/*.db written by
+# IdentityService during tests) — not just the root /data/
+**/data/
 logs/
 
 # macOS metadata