diff --git a/test/EncUT_MemoryAlloc.cpp b/test/EncUT_MemoryAlloc.cpp
index 2627224e..02f3de05 100644
--- a/test/EncUT_MemoryAlloc.cpp
+++ b/test/EncUT_MemoryAlloc.cpp
@@ -1,5 +1,6 @@
 #include "../gtest/include/gtest/gtest.h"
 #include <string.h>		// use memset/memcmp
+#include <time.h>
 #include "../codec/encoder/core/inc/memory_align.h"
 
 using namespace WelsSVCEnc;