diff --git a/soc/riscv/litex-vexriscv/soc.h b/soc/riscv/litex-vexriscv/soc.h
index 02567237c7b..827633088b7 100644
--- a/soc/riscv/litex-vexriscv/soc.h
+++ b/soc/riscv/litex-vexriscv/soc.h
@@ -11,8 +11,8 @@
 #include <devicetree.h>
 
 /* lib-c hooks required RAM defined variables */
-#define RISCV_RAM_BASE              DT_INST_0_MMIO_SRAM_BASE_ADDRESS
-#define RISCV_RAM_SIZE              DT_INST_0_MMIO_SRAM_SIZE
+#define RISCV_RAM_BASE              DT_REG_ADDR(DT_INST(0, mmio_sram))
+#define RISCV_RAM_SIZE              DT_REG_SIZE(DT_INST(0, mmio_sram))
 
 #ifndef _ASMLANGUAGE
 /* CSR access helpers */