diff --git a/be/test/olap/lru_cache_test.cpp b/be/test/olap/lru_cache_test.cpp
index 2677abc8ea80b4..ac27af082a73f8 100644
--- a/be/test/olap/lru_cache_test.cpp
+++ b/be/test/olap/lru_cache_test.cpp
@@ -391,7 +391,8 @@ TEST_F(CacheTest, PruneIfLazyMode) {
     auto pred3 = [](const LRUHandle* handle) -> bool {
         return DecodeValue((void*)(handle->value)) <= 600;
     };
-    EXPECT_EQ(3, cache.prune_if(pred3, true));
+    auto [pruned_count, pruned_size] = cache.prune_if(pred3, true);
+    EXPECT_EQ(3, pruned_count);
     EXPECT_EQ(4, cache.get_usage());
 }