diff --git a/boards/matek/h743-slim/nuttx-config/include/board.h b/boards/matek/h743-slim/nuttx-config/include/board.h
index d3b65db9c5..4bf2b6e45e 100644
--- a/boards/matek/h743-slim/nuttx-config/include/board.h
+++ b/boards/matek/h743-slim/nuttx-config/include/board.h
@@ -294,7 +294,7 @@
 #  define STM32_SDMMC_MMCXFR_CLKDIV   (100 << STM32_SDMMC_CLKCR_CLKDIV_SHIFT)
 #endif
 #if defined(CONFIG_STM32H7_SDMMC_XDMA) || defined(CONFIG_STM32H7_SDMMC_IDMA)
-#  define STM32_SDMMC_MMCXFR_CLKDIV   (6 << STM32_SDMMC_CLKCR_CLKDIV_SHIFT)
+#  define STM32_SDMMC_SDXFR_CLKDIV    (6 << STM32_SDMMC_CLKCR_CLKDIV_SHIFT)
 #else
 #  define STM32_SDMMC_SDXFR_CLKDIV    (100 << STM32_SDMMC_CLKCR_CLKDIV_SHIFT)
 #endif