Index: kernel/arch/riscv64/include/arch/drivers/ucb.h
===================================================================
--- kernel/arch/riscv64/include/arch/drivers/ucb.h	(revision 128359ebc085c950da1f7e34c3928f12654b438f)
+++ kernel/arch/riscv64/include/arch/drivers/ucb.h	(revision 663f445f6ae6d51eff8cb7bcc345d4a411d3ff7e)
@@ -42,5 +42,5 @@
 extern void htif_init(volatile uint64_t *, volatile uint64_t *);
 extern outdev_t *htifout_init(void);
-extern void htif_putwchar(outdev_t *, const wchar_t);
+extern void htif_putuchar(outdev_t *, const char32_t);
 
 #endif
Index: kernel/arch/riscv64/src/asm.S
===================================================================
--- kernel/arch/riscv64/src/asm.S	(revision 128359ebc085c950da1f7e34c3928f12654b438f)
+++ kernel/arch/riscv64/src/asm.S	(revision 663f445f6ae6d51eff8cb7bcc345d4a411d3ff7e)
@@ -35,7 +35,7 @@
 FUNCTION_END(asm_delay_loop)
 
-FUNCTION_BEGIN(early_putwchar)
+FUNCTION_BEGIN(early_putuchar)
 	ret
-FUNCTION_END(early_putwchar)
+FUNCTION_END(early_putuchar)
 
 FUNCTION_BEGIN(cpu_halt)
Index: kernel/arch/riscv64/src/drivers/ucb.c
===================================================================
--- kernel/arch/riscv64/src/drivers/ucb.c	(revision 128359ebc085c950da1f7e34c3928f12654b438f)
+++ kernel/arch/riscv64/src/drivers/ucb.c	(revision 663f445f6ae6d51eff8cb7bcc345d4a411d3ff7e)
@@ -42,5 +42,5 @@
 
 static outdev_operations_t htifdev_ops = {
-	.write = htif_putwchar,
+	.write = htif_putuchar,
 	.redraw = NULL,
 	.scroll_up = NULL,
@@ -85,5 +85,5 @@
 }
 
-void htif_putwchar(outdev_t *dev, const wchar_t ch)
+void htif_putuchar(outdev_t *dev, const char32_t ch)
 {
 	if (ascii_check(ch))