diff --git a/src/portable/renesas/rusb2/dcd_rusb2.c b/src/portable/renesas/rusb2/dcd_rusb2.c
index f509dcc56..2653d0da6 100644
--- a/src/portable/renesas/rusb2/dcd_rusb2.c
+++ b/src/portable/renesas/rusb2/dcd_rusb2.c
@@ -40,6 +40,7 @@
 #if !defined(CFG_TUSB_RHPORT0_MODE) && !defined(CFG_TUSB_RHPORT1_MODE)
 // fallback
 #define CFG_TUSB_RHPORT0_MODE   OPT_MODE_DEVICE
+#define CFG_TUSB_RHPORT1_MODE   0
 #endif
 
 #if TU_CHECK_MCU(OPT_MCU_RX63X, OPT_MCU_RX65X, OPT_MCU_RX72N)
diff --git a/src/portable/renesas/rusb2/hcd_rusb2.c b/src/portable/renesas/rusb2/hcd_rusb2.c
index 1ec25f1e2..1e26c931d 100644
--- a/src/portable/renesas/rusb2/hcd_rusb2.c
+++ b/src/portable/renesas/rusb2/hcd_rusb2.c
@@ -36,6 +36,7 @@
 #if !defined(CFG_TUSB_RHPORT0_MODE) && !defined(CFG_TUSB_RHPORT1_MODE)
 // fallback
 #define CFG_TUSB_RHPORT0_MODE   OPT_MODE_HOST
+#define CFG_TUSB_RHPORT1_MODE   0
 #endif
 
 #if TU_CHECK_MCU(OPT_MCU_RX63X, OPT_MCU_RX65X, OPT_MCU_RX72N)
diff --git a/src/portable/renesas/rusb2/rusb2_ra.h b/src/portable/renesas/rusb2/rusb2_ra.h
index 874492304..a1c58abe5 100644
--- a/src/portable/renesas/rusb2/rusb2_ra.h
+++ b/src/portable/renesas/rusb2/rusb2_ra.h
@@ -40,6 +40,7 @@ extern IRQn_Type _usb_hs_irqn;
 #if !defined(CFG_TUSB_RHPORT0_MODE) && !defined(CFG_TUSB_RHPORT1_MODE)
 // fallback
 #define CFG_TUSB_RHPORT0_MODE   ( CFG_TUD_ENABLED ? OPT_MODE_DEVICE : OPT_MODE_HOST )
+#define CFG_TUSB_RHPORT1_MODE   0
 #endif
 
 TU_ATTR_ALWAYS_INLINE static inline void rusb2_int_enable(uint8_t rhport)