diff --git a/newlib/libc/include/sys/resource.h b/newlib/libc/include/sys/resource.h
index b99506bd8..c0a0d2019 100644
--- a/newlib/libc/include/sys/resource.h
+++ b/newlib/libc/include/sys/resource.h
@@ -1,6 +1,10 @@
 #ifndef _SYS_RESOURCE_H_
 #define _SYS_RESOURCE_H_
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #include <sys/time.h>
 
 #define	RUSAGE_SELF	0		/* calling process */
@@ -13,5 +17,8 @@ struct rusage {
 
 int	getrusage (int, struct rusage*);
 
+#ifdef __cplusplus
+}
 #endif
+#endif /* !_SYS_RESOURCE_H_ */