diff --git a/src/util/inc/talloc.h b/src/util/inc/talloc.h
index a59e88cf13..1fc4d759b0 100644
--- a/src/util/inc/talloc.h
+++ b/src/util/inc/talloc.h
@@ -20,6 +20,8 @@
 extern "C" {
 #endif
 
+#define TSDB_USE_SYS_MEM
+
 #ifdef TSDB_USE_SYS_MEM
   #define tmalloc(size) malloc(size)
   #define tcalloc(size) calloc(1, size)