diff --git a/README.md b/README.md
index a376758..b4708ef 100644
--- a/README.md
+++ b/README.md
@@ -297,9 +297,15 @@ There is some scripts to generate the SoC and call the icestorm toolchain there
 
 In fact, you can find some prebuild GCC : <br>
 - https://www.sifive.com/products/tools/   =>   SiFive GNU Embedded Toolchain
-
 The VexRiscvSocSoftware makefiles are expecting to find this prebuild version in /opt/riscv/__contentOfThisPreBuild__
 
+```sh
+wget https://static.dev.sifive.com/dev-tools/riscv64-unknown-elf-gcc-20170612-x86_64-linux-centos6.tar.gz
+tar -xzvf riscv64-unknown-elf-gcc-20170612-x86_64-linux-centos6.tar.gz
+sudo mv riscv64-unknown-elf-gcc-20170612-x86_64-linux-centos6 /opt/riscv64-unknown-elf-gcc-20170612-x86_64-linux-centos6
+sudo mv /opt/riscv64-unknown-elf-gcc-20170612-x86_64-linux-centos6 /opt/riscv
+echo 'export PATH=/opt/riscv/bin:$PATH' >> ~/.bashrc 
+```
 
 But if you want to compile from sources in /opt/ the rv32i and rv32im gcc, do the following (will take hours):