diff --git a/tests/test-throttle.c b/tests/test-throttle.c
index 083e1f9ba8..7adb5e6652 100644
--- a/tests/test-throttle.c
+++ b/tests/test-throttle.c
@@ -558,6 +558,8 @@ static bool do_test_accounting(bool is_ops, /* are we testing bps or ops */
     BucketType index;
     int i;
 
+    throttle_config_init(&cfg);
+
     for (i = 0; i < 3; i++) {
         BucketType index = to_test[is_ops][i];
         cfg.buckets[index].avg = avg;