diff --git a/lib/CPUs/MIPS/bsp/examples/dbg.c b/lib/CPUs/MIPS/bsp/examples/dbg.c
index 5f038e9..66cde00 100644
--- a/lib/CPUs/MIPS/bsp/examples/dbg.c
+++ b/lib/CPUs/MIPS/bsp/examples/dbg.c
@@ -233,7 +233,7 @@ void dbg_handler(struct xcptcontext * xcp)
 	do
 	{
 		leave_isr = 0;
-		switch(readchar())
+		switch(readchar(0))
 		{
 			case 'g':
 			leave_isr = 1;