diff --git a/dlls/ttydrv/ttydrv.h b/dlls/ttydrv/ttydrv.h
index f3ed8bb730e..6249f019bb0 100644
--- a/dlls/ttydrv/ttydrv.h
+++ b/dlls/ttydrv/ttydrv.h
@@ -26,11 +26,13 @@
 #endif
 
 #undef ERR
+#if defined(HAVE_LIBCURSES) || defined(HAVE_LIBNCURSES)
 #ifdef HAVE_NCURSES_H
 # include <ncurses.h>
 #elif defined(HAVE_CURSES_H)
 # include <curses.h>
 #endif
+#endif
 
 #include "windef.h"
 #include "wingdi.h"