diff --git a/configs/nucleo-144/include/board.h b/configs/nucleo-144/include/board.h
index 974cb73c9e..dd1491568b 100644
--- a/configs/nucleo-144/include/board.h
+++ b/configs/nucleo-144/include/board.h
@@ -171,6 +171,7 @@
 #define STM32_RCC_DCKCFGR2_CK48MSRC   RCC_DCKCFGR2_CK48MSEL_PLL
 #define STM32_RCC_DCKCFGR2_SDMMCSRC   RCC_DCKCFGR2_SDMMCSEL_48MHZ
 #define STM32_RCC_DCKCFGR2_SDMMC2SRC  RCC_DCKCFGR2_SDMMC2SEL_48MHZ
+#define STM32_RCC_DCKCFGR2_DSISRC     RCC_DCKCFGR2_DSISEL_PHY
 
 
 /* Several prescalers allow the configuration of the two AHB buses, the