diff --git a/util/sync_point.h b/util/sync_point.h
index 3e880213e..b4b61a9fc 100644
--- a/util/sync_point.h
+++ b/util/sync_point.h
@@ -11,12 +11,12 @@
 #include <unordered_map>
 #include <vector>
 
-namespace rocksdb {
-
 #ifdef NDEBUG
 #define TEST_SYNC_POINT(x)
 #else
 
+namespace rocksdb {
+
 // This class provides facility to reproduce race conditions deterministically
 // in unit tests.
 // Developer could specify sync points in the codebase via TEST_SYNC_POINT.