diff --git a/drivers/renesas/rcar/watchdog/swdt.c b/drivers/renesas/rcar/watchdog/swdt.c
index 7793ae5..8b2943c 100644
--- a/drivers/renesas/rcar/watchdog/swdt.c
+++ b/drivers/renesas/rcar/watchdog/swdt.c
@@ -49,7 +49,11 @@
 #define WTCSRA_INIT_DATA		(WTCSRA_UPPER_BYTE + 0x0FU)
 #define WTCSRB_INIT_DATA		(WTCSRB_UPPER_BYTE + 0x21U)
 
+#if RCAR_LSI == RCAR_D3
+#define WTCNT_COUNT_8p13k		(0x10000U - 40760U)
+#else
 #define WTCNT_COUNT_8p13k		(0x10000U - 40687U)
+#endif
 #define WTCNT_COUNT_8p13k_H3VER10	(0x10000U - 20343U)
 #define WTCNT_COUNT_8p22k		(0x10000U - 41115U)
 #define WTCNT_COUNT_7p81k		(0x10000U - 39062U)