diff --git a/README_Install_Ubuntu.md b/README_Install_Ubuntu.md
index f9965e0f2..72304a0e8 100644
--- a/README_Install_Ubuntu.md
+++ b/README_Install_Ubuntu.md
@@ -2,7 +2,7 @@
 ## With Apache mod_proxy / MySQL
 
 ### Prerequisits
-* apt-get install apt-get install curl git-core patch build-essential bison zlib1g-dev libssl-dev libxml2-dev libxml2-dev sqlite3 libsqlite3-dev autotools-dev libxslt1-dev libyaml-0-2 autoconf automake libreadline6-dev libyaml-dev libtool
+* apt-get install curl git-core patch build-essential bison zlib1g-dev libssl-dev libxml2-dev libxml2-dev sqlite3 libsqlite3-dev autotools-dev libxslt1-dev libyaml-0-2 autoconf automake libreadline6-dev libyaml-dev libtool
 
 ### Add User
 * useradd zammad -m -s /bin/bash
@@ -109,7 +109,7 @@
 ## Testinstallation for Developers via RVM / SQLite
 
 ### Prerequisits
-* apt-get install apt-get install curl git-core patch build-essential bison zlib1g-dev libssl-dev libxml2-dev libxml2-dev sqlite3 libsqlite3-dev autotools-dev libxslt1-dev libyaml-0-2 autoconf automake libreadline6-dev libyaml-dev libtool
+* apt-get install curl git-core patch build-essential bison zlib1g-dev libssl-dev libxml2-dev libxml2-dev sqlite3 libsqlite3-dev autotools-dev libxslt1-dev libyaml-0-2 autoconf automake libreadline6-dev libyaml-dev libtool
 
 ### Add User
 * useradd zammad -m -s /bin/bash