diff --git a/variants/NUCLEO_L4R5ZI/PeripheralPins.c b/variants/NUCLEO_L4R5ZI/PeripheralPins.c
index 96dbe06a8a..7655e5ac30 100644
--- a/variants/NUCLEO_L4R5ZI/PeripheralPins.c
+++ b/variants/NUCLEO_L4R5ZI/PeripheralPins.c
@@ -416,3 +416,21 @@ WEAK const PinMap PinMap_USB_OTG_FS[] = {
 #endif
 
 //*** No USB_OTG_HS ***
+
+//*** SD ***
+
+#ifdef HAL_SD_MODULE_ENABLED
+WEAK const PinMap PinMap_SD[] = {
+  // {PB_8,  SDMMC1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF12_SDMMC1)}, // SDMMC1_D4
+  // {PB_9,  SDMMC1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF12_SDMMC1)}, // SDMMC1_D5
+  // {PC_6,  SDMMC1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF12_SDMMC1)}, // SDMMC1_D6
+  // {PC_7,  SDMMC1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF12_SDMMC1)}, // SDMMC1_D7
+  {PC_8,  SDMMC1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF12_SDMMC1)}, // SDMMC1_D0
+  {PC_9,  SDMMC1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF12_SDMMC1)}, // SDMMC1_D1
+  {PC_10, SDMMC1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF12_SDMMC1)}, // SDMMC1_D2
+  {PC_11, SDMMC1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF12_SDMMC1)}, // SDMMC1_D3
+  {PC_12, SDMMC1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_NOPULL, GPIO_AF12_SDMMC1)}, // SDMMC1_CK
+  {PD_2,  SDMMC1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_NOPULL, GPIO_AF12_SDMMC1)}, // SDMMC1_CMD
+  {NC,    NP,    0}
+};
+#endif