diff --git a/configs/stm32f746-ws/include/board.h b/configs/stm32f746-ws/include/board.h
index 17ca38417ea..8cbd85bc92c 100644
--- a/configs/stm32f746-ws/include/board.h
+++ b/configs/stm32f746-ws/include/board.h
@@ -144,7 +144,7 @@
 
 
 /* Configure factors for  PLLI2S clock */
-
+#define CONFIG_STM32F7_PLLI2S 1
 #define STM32_RCC_PLLI2SCFGR_PLLI2SN   RCC_PLLI2SCFGR_PLLI2SN(192)
 #define STM32_RCC_PLLI2SCFGR_PLLI2SP   RCC_PLLI2SCFGR_PLLI2SP(2)
 #define STM32_RCC_PLLI2SCFGR_PLLI2SQ   RCC_PLLI2SCFGR_PLLI2SQ(2)