diff --git a/toolchain.sh b/toolchain.sh
index ff51872..28d5fe3 100644
--- a/toolchain.sh
+++ b/toolchain.sh
@@ -11,6 +11,7 @@ cd /opt/Espressif
 #Install crosstool-NG (toolchain)
 git clone --depth 1 -b lx106 git://github.com/jcmvbkbc/crosstool-NG.git 
 cd crosstool-NG
+sed -i '/http:\/\/www.multiprecision.org\/mpc\/download/c\{ftp,http,https}:\/\/ftp.gnu.org\/gnu\/mpc' scripts/build/companion_libs/140-mpc.sh
 ./bootstrap && ./configure --prefix=`pwd` && make && make install
 ./ct-ng xtensa-lx106-elf
 ./ct-ng build