diff --git a/data.cpp b/data.cpp
index 7755701..b034bf8 100644
--- a/data.cpp
+++ b/data.cpp
@@ -20,6 +20,7 @@
 #include <time.h>
 #include <string>
 #include <sstream>
+#include <fstream>
 #include <cctype>
 #include <cutils/properties.h>
 #include <unistd.h>