diff --git a/include/util/tarray.h b/include/util/tarray.h
index 9638a2a035..f56c9e3a17 100644
--- a/include/util/tarray.h
+++ b/include/util/tarray.h
@@ -22,7 +22,7 @@
 extern "C" {
 #endif
 
-#define TARRAY_MIN_SIZE               8
+#define TARRAY_MIN_SIZE               4
 #define TARRAY_GET_ELEM(array, index) ((void*)((char*)((array)->pData) + (index) * (array)->elemSize))
 #define TARRAY_ELEM_IDX(array, ele)   (POINTER_DISTANCE(ele, (array)->pData) / (array)->elemSize)