diff --git a/SystemToolkit.cpp b/SystemToolkit.cpp
index 80d2aec..d4ac174 100644
--- a/SystemToolkit.cpp
+++ b/SystemToolkit.cpp
@@ -2,6 +2,7 @@
 #include <stdio.h>
 #include <unistd.h>
 #include <fstream>
+#include <sstream>
 #include <iomanip>
 #include <chrono>
 #include <algorithm>