diff --git a/LibC/stdlib.cpp b/LibC/stdlib.cpp
index 74d7d07939..3f4b64329c 100644
--- a/LibC/stdlib.cpp
+++ b/LibC/stdlib.cpp
@@ -1,19 +1,20 @@
-#include <stdlib.h>
-#include <sys/mman.h>
-#include <stdio.h>
-#include <unistd.h>
-#include <string.h>
-#include <alloca.h>
-#include <assert.h>
-#include <errno.h>
-#include <ctype.h>
-#include <signal.h>
+#include <AK/AKString.h>
 #include <AK/Assertions.h>
+#include <AK/HashMap.h>
+#include <AK/StdLibExtras.h>
 #include <AK/Types.h>
 #include <Kernel/Syscall.h>
-#include <AK/StdLibExtras.h>
-#include <AK/HashMap.h>
-#include <AK/AKString.h>
+#include <alloca.h>
+#include <assert.h>
+#include <ctype.h>
+#include <errno.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/mman.h>
+#include <sys/wait.h>
+#include <unistd.h>
 
 extern "C" {
 
diff --git a/LibC/sys/wait.h b/LibC/sys/wait.h
index c9d9e960aa..3fedd42b2c 100644
--- a/LibC/sys/wait.h
+++ b/LibC/sys/wait.h
@@ -5,7 +5,17 @@
 
 __BEGIN_DECLS
 
+#define WEXITSTATUS(status) (((status)&0xff00) >> 8)
+#define WTERMSIG(status) ((status)&0x7f)
+#define WIFEXITED(status) (WTERMSIG(status) == 0)
+#define WIFSIGNALED(status) (((char)(((status)&0x7f) + 1) >> 1) > 0)
+
 #define WNOHANG 1
+#define WUNTRACED 2
+#define WSTOPPED WUNTRACED
+#define WEXITED 4
+#define WCONTINUED 8
+
 pid_t wait(int* wstatus);
 
 __END_DECLS
diff --git a/LibC/unistd.h b/LibC/unistd.h
index 0ea910c299..a935330a6d 100644
--- a/LibC/unistd.h
+++ b/LibC/unistd.h
@@ -95,11 +95,6 @@ enum
     _PC_NAME_MAX,
 };
 
-#define WEXITSTATUS(status) (((status)&0xff00) >> 8)
-#define WTERMSIG(status) ((status)&0x7f)
-#define WIFEXITED(status) (WTERMSIG(status) == 0)
-#define WIFSIGNALED(status) (((char)(((status)&0x7f) + 1) >> 1) > 0)
-
 #define HOST_NAME_MAX 64
 
 #define R_OK 4
diff --git a/Shell/main.cpp b/Shell/main.cpp
index 47a2bc2ef9..d5f1bab4a8 100644
--- a/Shell/main.cpp
+++ b/Shell/main.cpp
@@ -1,21 +1,22 @@
+#include "GlobalState.h"
+#include "LineEditor.h"
+#include "Parser.h"
+#include <AK/FileSystemPath.h>
+#include <LibCore/CDirIterator.h>
+#include <LibCore/CElapsedTimer.h>
 #include <errno.h>
+#include <fcntl.h>
 #include <pwd.h>
 #include <signal.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <termios.h>
 #include <sys/mman.h>
 #include <sys/stat.h>
 #include <sys/utsname.h>
-#include <AK/FileSystemPath.h>
-#include <LibCore/CElapsedTimer.h>
-#include <LibCore/CDirIterator.h>
-#include "GlobalState.h"
-#include "Parser.h"
-#include "LineEditor.h"
+#include <sys/wait.h>
+#include <termios.h>
+#include <unistd.h>
 
 //#define SH_DEBUG