diff --git a/tools/gn/exec_process.cc b/tools/gn/exec_process.cc
index e80abd6..e5ab248 100644
--- a/tools/gn/exec_process.cc
+++ b/tools/gn/exec_process.cc
@@ -9,6 +9,7 @@
 #include "base/command_line.h"
 #include "base/files/file_util.h"
 #include "base/logging.h"
+#include "base/memory/scoped_ptr.h"
 #include "base/process/kill.h"
 #include "base/process/launch.h"
 #include "base/process/process.h"