diff --git a/docs/CONTRIBUTORS b/docs/CONTRIBUTORS
index 103cd554d..9ca29b828 100644
--- a/docs/CONTRIBUTORS
+++ b/docs/CONTRIBUTORS
@@ -31,6 +31,7 @@ Edgar E. Iglesias
 Eric Rippey
 Eyck Jentzsch
 Fan Shupei
+february cozzocrea
 Felix Neumärker
 Felix Yan
 Garrett Smith
diff --git a/docs/guide/install.rst b/docs/guide/install.rst
index b6e50d16b..681eaeba9 100644
--- a/docs/guide/install.rst
+++ b/docs/guide/install.rst
@@ -39,7 +39,7 @@ In brief, to install from git:
 ::
 
    # Prerequisites:
-   #sudo apt-get install git perl python3 make autoconf g++ flex bison ccache
+   #sudo apt-get install git help2man perl python3 make autoconf g++ flex bison ccache
    #sudo apt-get install libgoogle-perftools-dev numactl perl-doc
    #sudo apt-get install libfl2  # Ubuntu only (ignore if gives error)
    #sudo apt-get install libfl-dev  # Ubuntu only (ignore if gives error)