diff --git a/srcpkgs/rstudio/patches/include_iostream.patch b/srcpkgs/rstudio/patches/include_iostream.patch
new file mode 100644
index 00000000000..355358d7801
--- /dev/null
+++ b/srcpkgs/rstudio/patches/include_iostream.patch
@@ -0,0 +1,10 @@
+--- src/cpp/core/Trace.cpp.orig	2017-04-13 16:16:15.000000000 +0000
++++ src/cpp/core/Trace.cpp	2017-09-17 16:36:36.663370924 +0000
+@@ -16,6 +16,7 @@
+ 
+ #include <core/Trace.hpp>
+ 
++#include <iostream>
+ #include <map>
+ 
+ #include <boost/utility.hpp>