diff --git a/tests/tests/main.fmf b/tests/tests/main.fmf
index 2d081553c1..ac71f2f618 100644
--- a/tests/tests/main.fmf
+++ b/tests/tests/main.fmf
@@ -6,3 +6,9 @@ test: |
     --log-cli-level=${LOG_LEVEL} \
     --log-cli-date-format="%Y-%m-%d %H:%M:%S%z" \
     --log-cli-format="%(asctime)s,%(msecs)03d %(levelname)-7s [%(name)s] %(message)s (%(module)s:%(lineno)d)"
+
+# Require the whole tree (no pruning)
+require:
+  - type: file
+    pattern:
+      - /