diff --git a/README.md b/README.md
index e8d59e9..4a7fad6 100644
--- a/README.md
+++ b/README.md
@@ -19,7 +19,7 @@ Right now these tools are build:
 ### Centos
 `sudo yum install wget gcc gcc-c++ python git perl-Pod-Simple gperf patch autoconf automake make makedepend bison flex ncurses-devel gmp-devel mpfr-devel libmpc-devel gettext-devel texinfo`
 ### Ubuntu
-`sudo apt install make wget git gcc g++ lhasa libgmp-dev libmpfr-dev libmpc-dev flex bison gettext texinfo ncurses-dev`
+`sudo apt install make wget git gcc g++ lhasa libgmp-dev libmpfr-dev libmpc-dev flex bison gettext texinfo ncurses-dev autoconf`
 ### macOS
 Install Homebrew (https://brew.sh/) or any other package manager first. The compiler will be installed together with XCode. Once XCode and Homebrew are up install the required packages: