diff --git a/docs/source/quickstart.rst b/docs/source/quickstart.rst
index 2dd5d34..19e8668 100644
--- a/docs/source/quickstart.rst
+++ b/docs/source/quickstart.rst
@@ -21,7 +21,7 @@ Installing prerequisites (this command is for Ubuntu 16.04):
 
    sudo apt-get install build-essential clang bison flex libreadline-dev \
                         gawk tcl-dev libffi-dev git mercurial graphviz   \
-                        xdot pkg-config python python3 libftdi-dev
+                        xdot pkg-config python python3 libftdi-dev gperf
 
 Yosys, Yosys-SMTBMC and ABC
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~