diff --git a/DRAMSys/library/src/common/utils.cpp b/DRAMSys/library/src/common/utils.cpp
index af4890f0..3b9cdc1e 100644
--- a/DRAMSys/library/src/common/utils.cpp
+++ b/DRAMSys/library/src/common/utils.cpp
@@ -40,6 +40,7 @@
 #include <tlm.h>
 #include <fstream>
 #include "dramExtensions.h"
+#include <sstream>
 
 using namespace std;
 using namespace tinyxml2;