diff --git a/vga/vgaout.h b/vga/vgaout.h
index 0919157..ca9581c 100644
--- a/vga/vgaout.h
+++ b/vga/vgaout.h
@@ -47,4 +47,4 @@ void vga_submit_scanline(struct vga_scanline *scanline);
 
 void vga_stop();
 void vga_dpms_sleep();
-void vga_dpms_wake();
\ No newline at end of file
+void vga_dpms_wake();extern void terminal_process_input();