diff --git a/src/basic_os.cpp b/src/basic_os.cpp
index 0b8adb1..f1ab4c0 100644
--- a/src/basic_os.cpp
+++ b/src/basic_os.cpp
@@ -18,6 +18,8 @@ typedef void OSErrorReport(const char *, ...);
 #include <poll.h>
 #include <execinfo.h>
 #include <backtrace.h>
+#include <sys/resource.h>
+
 
 API void (*Error)(const char *, ...);