diff --git a/src/sdl/i_system.c b/src/sdl/i_system.c
index 7684045fcee014e3bd36fd6773e9febfe5717c98..47402e5497e2fcceb5abdbb05ba85d7ba0c59b27 100644
--- a/src/sdl/i_system.c
+++ b/src/sdl/i_system.c
@@ -189,6 +189,7 @@ static char returnWadPath[256];
 #include "../i_threads.h"
 #include "../screen.h" //vid.WndParent
 #include "../netcode/d_net.h"
+#include "../netcode/commands.h"
 #include "../g_game.h"
 #include "../filesrch.h"
 #include "endtxt.h"