diff --git a/test/main.h b/test/main.h
index 2288778f4..db4d484fb 100644
--- a/test/main.h
+++ b/test/main.h
@@ -14,6 +14,7 @@
 #include <iostream>
 #include <iomanip>
 #include <fstream>
+#include <limits>
 #include <string>
 #include <sstream>
 #include <vector>