diff --git a/tools/db_crashtest.py b/tools/db_crashtest.py
index 6edcc429a..3c11bddb4 100644
--- a/tools/db_crashtest.py
+++ b/tools/db_crashtest.py
@@ -179,7 +179,8 @@ default_params = {
     "async_io": lambda: random.choice([0, 1]),
     "wal_compression": lambda: random.choice(["none", "zstd"]),
     "verify_sst_unique_id_in_manifest": 1,  # always do unique_id verification
-    "secondary_cache_uri": "",
+    "secondary_cache_uri": lambda: random.choice(
+        ["", "compressed_secondary_cache://capacity=8388608"]),
     "allow_data_in_errors": True,
 }