diff --git a/src/system/helpers.cpp b/src/system/helpers.cpp
index 0c936efc5..88fe3efd4 100644
--- a/src/system/helpers.cpp
+++ b/src/system/helpers.cpp
@@ -34,6 +34,7 @@
 #include <sys/stat.h>
 #include <sys/types.h>
 #include <sys/vfs.h>    /* or <sys/statfs.h> */
+#include <sys/time.h>	/* gettimeofday */
 #include <string.h>
 #include <fcntl.h>
 #include <dirent.h>