diff --git a/tests/mutation_source_test.cc b/tests/mutation_source_test.cc
index 4395e2af23..5047cc8d05 100644
--- a/tests/mutation_source_test.cc
+++ b/tests/mutation_source_test.cc
@@ -1482,7 +1482,7 @@ static mutation_sets generate_mutation_sets() {
 
         clustering_key ck1 = clustering_key::from_deeply_exploded(*s1, {data_value(bytes("ck1_0")), data_value(bytes("ck1_1"))});
         clustering_key ck2 = clustering_key::from_deeply_exploded(*s1, {data_value(bytes("ck2_0")), data_value(bytes("ck2_1"))});
-        auto ttl = gc_clock::duration(1);
+        auto ttl = gc_clock::duration(1000);
 
         {
             auto tomb = new_tombstone();