diff --git a/src/riscv/renesas/r9a07g043f.dtsi b/src/riscv/renesas/r9a07g043f.dtsi
index b079601..a92cfcf 100644
--- a/src/riscv/renesas/r9a07g043f.dtsi
+++ b/src/riscv/renesas/r9a07g043f.dtsi
@@ -24,6 +24,10 @@
 			reg = <0x0>;
 			status = "okay";
 			riscv,isa = "rv64imafdc";
+			riscv,isa-base = "rv64i";
+			riscv,isa-extensions = "i", "m", "a", "f", "d", "c",
+					       "zicntr", "zicsr", "zifencei",
+					       "zihpm";
 			mmu-type = "riscv,sv39";
 			i-cache-size = <0x8000>;
 			i-cache-line-size = <0x40>;