diff --git a/include/vsag/index.h b/include/vsag/index.h
index 914f93485..797c884f3 100644
--- a/include/vsag/index.h
+++ b/include/vsag/index.h
@@ -885,7 +885,7 @@ class Index {
       */
     [[nodiscard]] virtual std::string
     GetStats() const {
-        throw std::runtime_error("Index not support range search");
+        throw std::runtime_error("Index not support GetStats");
     }
 
     /**
diff --git a/tests/test_simple_index.cpp b/tests/test_simple_index.cpp
index d70b99321..e2d335b70 100644
--- a/tests/test_simple_index.cpp
+++ b/tests/test_simple_index.cpp
@@ -116,7 +116,12 @@ TEST_CASE("Test Simple Index", "[ft][simple_index]") {
     REQUIRE_THROWS(index->EstimateMemory(1000));
     REQUIRE_THROWS(index->GetEstimateBuildMemory(1000));
     REQUIRE_THROWS(index->Feedback(dataset->query_, 10, ""));
-    REQUIRE_THROWS(index->GetStats());
+    try {
+        index->GetStats();
+        FAIL("Expected GetStats to throw");
+    } catch (const std::runtime_error& e) {
+        REQUIRE(std::string(e.what()) == "Index not support GetStats");
+    }
     REQUIRE_THROWS(index->UpdateId(0, 1));
     REQUIRE_THROWS(index->UpdateVector(0, dataset->query_));
     REQUIRE_THROWS(index->ContinueBuild(dataset->base_, binary));