diff --git a/dbms/src/Common/tests/gtest_cpptoml.cpp b/dbms/src/Common/tests/gtest_cpptoml.cpp
index 142466f5f45..5cc43aa6fdc 100644
--- a/dbms/src/Common/tests/gtest_cpptoml.cpp
+++ b/dbms/src/Common/tests/gtest_cpptoml.cpp
@@ -1,6 +1,14 @@
 #include <TestUtils/TiFlashTestBasic.h>
 #include <common/logger_useful.h>
-#include <cpptoml.h>
+/// Suppress gcc warning: ‘*((void*)&<anonymous> +4)’ may be used uninitialized in this function
+#if !__clang__
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wmaybe-uninitialized"
+#endif
+#include <Common/Config/cpptoml.h>
+#if !__clang__
+#pragma GCC diagnostic pop
+#endif
 
 #include <sstream>