diff --git a/dbms/src/Common/MemoryAllocTrace.cpp b/dbms/src/Common/MemoryAllocTrace.cpp
index 0a54a2aba40..51dbbd33adb 100644
--- a/dbms/src/Common/MemoryAllocTrace.cpp
+++ b/dbms/src/Common/MemoryAllocTrace.cpp
@@ -15,7 +15,7 @@
 #include <Common/MemoryAllocTrace.h>
 #include <common/config_common.h> // Included for `USE_JEMALLOC`
 
-#ifdef USE_JEMALLOC
+#if USE_JEMALLOC
 #include <jemalloc/jemalloc.h>
 #endif
 
@@ -23,7 +23,7 @@ namespace DB
 {
 std::tuple<uint64_t *, uint64_t *> getAllocDeallocPtr()
 {
-#ifdef USE_JEMALLOC
+#if USE_JEMALLOC
     uint64_t * ptr1 = nullptr;
     uint64_t size1 = sizeof ptr1;
     je_mallctl("thread.allocatedp", reinterpret_cast<void *>(&ptr1), &size1, nullptr, 0);