diff --git a/README.md b/README.md
index 04cda75..73170cb 100644
--- a/README.md
+++ b/README.md
@@ -917,7 +917,7 @@ script con las siguientes lineas:
 
 ``` bash
 Xephyr -ac -screen 800x600 -br -reset -terminate 2> /dev/null :1 &
-export DISPLAY=1
+export DISPLAY=:1
 i3
 ```
 
diff --git a/out/LinuxMintUlyana.dw b/out/LinuxMintUlyana.dw
index 58acd9b..bb2c41c 100644
--- a/out/LinuxMintUlyana.dw
+++ b/out/LinuxMintUlyana.dw
@@ -742,7 +742,7 @@ Asi que si queremos arrancar por ejemplo el //i3wm// podríamos hacer un script
 
 <code bash>
 Xephyr -ac -screen 800x600 -br -reset -terminate 2> /dev/null :1 &
-export DISPLAY=1
+export DISPLAY=:1
 i3
 </code>
 
diff --git a/out/LinuxMintUlyana.epub b/out/LinuxMintUlyana.epub
index be59067..e5613d6 100644
Binary files a/out/LinuxMintUlyana.epub and b/out/LinuxMintUlyana.epub differ
diff --git a/out/LinuxMintUlyana.mw b/out/LinuxMintUlyana.mw
index ce5a952..302c539 100644
--- a/out/LinuxMintUlyana.mw
+++ b/out/LinuxMintUlyana.mw
@@ -644,7 +644,7 @@ Para lanzar un ''Xserver'' usaríamos un comando como:
 Asi que si queremos arrancar por ejemplo el ''i3wm'' podríamos hacer un script con las siguientes lineas:
 
 <syntaxhighlight lang="bash">Xephyr -ac -screen 800x600 -br -reset -terminate 2> /dev/null :1 &
-export DISPLAY=1
+export DISPLAY=:1
 i3</syntaxhighlight>
 Para ''Qtile'' bastaria con cambiar <code>i3</code> por <code>qtile start</code>
 
diff --git a/out/LinuxMintUlyana.odt b/out/LinuxMintUlyana.odt
index 1e47e2d..37f106c 100644
Binary files a/out/LinuxMintUlyana.odt and b/out/LinuxMintUlyana.odt differ
diff --git a/out/LinuxMintUlyana.pdf b/out/LinuxMintUlyana.pdf
index f6cf5e8..17851ce 100644
Binary files a/out/LinuxMintUlyana.pdf and b/out/LinuxMintUlyana.pdf differ
diff --git a/out/LinuxMintUlyana.tex b/out/LinuxMintUlyana.tex
index 0ebd2ca..d1d1198 100644
--- a/out/LinuxMintUlyana.tex
+++ b/out/LinuxMintUlyana.tex
@@ -1244,7 +1244,7 @@ un script con las siguientes lineas:
 \begin{Shaded}
 \begin{Highlighting}[]
 \ExtensionTok{Xephyr} \AttributeTok{{-}ac} \AttributeTok{{-}screen}\NormalTok{ 800x600 }\AttributeTok{{-}br} \AttributeTok{{-}reset} \AttributeTok{{-}terminate} \DecValTok{2}\OperatorTok{\textgreater{}}\NormalTok{ /dev/null :1 }\KeywordTok{\&}
-\BuiltInTok{export} \VariableTok{DISPLAY=}\NormalTok{1}
+\BuiltInTok{export} \VariableTok{DISPLAY=}\NormalTok{:1}
 \ExtensionTok{i3}
 \end{Highlighting}
 \end{Shaded}
diff --git a/src/250_extra.md b/src/250_extra.md
index e61c460..de4da14 100644
--- a/src/250_extra.md
+++ b/src/250_extra.md
@@ -311,7 +311,7 @@ Asi que si queremos arrancar por ejemplo el _i3wm_ podríamos hacer un script co
 
 ```bash
 Xephyr -ac -screen 800x600 -br -reset -terminate 2> /dev/null :1 &
-export DISPLAY=1
+export DISPLAY=:1
 i3
 ```