diff --git a/Tests/ObjC++/objc++.mm b/Tests/ObjC++/objc++.mm
index b7ec4b5f5..f0be25682 100644
--- a/Tests/ObjC++/objc++.mm
+++ b/Tests/ObjC++/objc++.mm
@@ -1,5 +1,6 @@
-#import <iostream.h>
 #import <Cocoa/Cocoa.h>
+#import <iostream>
+using namespace std;
 
 int main()
 {
diff --git a/Tests/X11/HelloWorldX11.cxx b/Tests/X11/HelloWorldX11.cxx
index 5bbc19a4a..e3c9dd9cf 100644
--- a/Tests/X11/HelloWorldX11.cxx
+++ b/Tests/X11/HelloWorldX11.cxx
@@ -15,6 +15,7 @@
 #define MAIN_H 1
 
 #include <iostream>
+#include <stdlib.h>
 
 /* include the X library headers */
 #include <X11/Xlib.h>