diff -u -r ../ncdu-1.11/src/shell.c ./src/shell.c
--- ../ncdu-1.11/src/shell.c	2014-12-14 09:13:08.000000000 -0500
+++ ./src/shell.c	2015-05-24 18:20:18.274063946 -0400
@@ -32,6 +32,7 @@
 #include <ncurses.h>
 #include <stdlib.h>
 #include <unistd.h>
+#include <sys/wait.h>
 
 void shell_draw() {
   char *full_path;