diff --git a/include/BeanUpdater.h b/include/BeanUpdater.h
index 7827bd7..a721d9d 100644
--- a/include/BeanUpdater.h
+++ b/include/BeanUpdater.h
@@ -1,3 +1,6 @@
+#include <stdio.h>
+#include <cstring>
+
 #ifndef BEANUPDATER_H
 #define BEANUPDATER_H
 
diff --git a/tests.cpp b/tests.cpp
index 0f2c3cd..8fad4e7 100644
--- a/tests.cpp
+++ b/tests.cpp
@@ -6,6 +6,7 @@ using namespace hiberlite;
 #include <cmath>
 #include <vector>
 #include <map>
+#include <cstdlib>
 using namespace std;