diff --git a/2010-06-01-el_software-martillo.markdown b/2010-06-01-el_software-martillo.markdown
index c810eb234e82db1b98b8509bab507af3bd7f7fc8..1980f9016328161e7a93e9cd4b8ef593f7ef1f1d 100644
--- a/2010-06-01-el_software-martillo.markdown
+++ b/2010-06-01-el_software-martillo.markdown
@@ -4,7 +4,7 @@ title: "El Software-martillo"
 author: "Nicolás Reynolds"
 cover: "images/cover_endefensadelsl_nr0.png"
 license: https://creativecommons.org/licenses/by-sa/2.5/ar/
-category: [ "En Defensa del Software Libre #0", "En Defensa del Software Libre #X" ]
+category: [ "En Defensa del Software Libre #0", "En Defensa del Software Libre #0-1" ]
 ---
 
 El Software-martillo --- Nicolás Reynolds
diff --git a/2010-06-01-que_es_el_software_libre.markdown b/2010-06-01-que_es_el_software_libre.markdown
index 9c498578423b72659020cd91a197393d3cf57ca6..f93639d2451e9422f6b0c3a156ebab8574c1d648 100644
--- a/2010-06-01-que_es_el_software_libre.markdown
+++ b/2010-06-01-que_es_el_software_libre.markdown
@@ -3,7 +3,7 @@ layout: post
 author: "Lucy Watts"
 title: "Richard Stallman: Qué es el Software Libre"
 cover: "images/cover_endefensadelsl_nr0.png"
-category: [ "En Defensa del Software Libre #0", "En Defensa del Software Libre #X" ]
+category: [ "En Defensa del Software Libre #0", "En Defensa del Software Libre #0-1" ]
 license: https://creativecommons.org/licenses/by-sa/3.0/
 ---
 
diff --git a/2010-10-01-pirateria_y_software_libre.markdown b/2010-10-01-pirateria_y_software_libre.markdown
index 51a46f100c7dbb0f6a072c8296fa175c22e4818e..01815ba63a89e43c685bfc28673305575dce8d39 100644
--- a/2010-10-01-pirateria_y_software_libre.markdown
+++ b/2010-10-01-pirateria_y_software_libre.markdown
@@ -4,7 +4,7 @@ title: "Piratería y Software Libre"
 author: "Benjamin Mako Hill"
 cover: "images/cover_endefensadelsl_nr0.png"
 license: https://creativecommons.org/licenses/by-sa/2.5/ar/
-category: [ "En Defensa del Software Libre #0", "En Defensa del Software Libre #X" ]
+category: [ "En Defensa del Software Libre #0", "En Defensa del Software Libre #0-1" ]
 ---
 
 Piratería y Software Libre --- Benjamin Mako Hill
diff --git a/2011-01-01-libertad_en_la_nube.markdown b/2011-01-01-libertad_en_la_nube.markdown
index 339e628336a0372564b8b4e199d38a4bab2932bc..5d19939ea53eb8aa435bef7bd0cff2b35429a8ef 100644
--- a/2011-01-01-libertad_en_la_nube.markdown
+++ b/2011-01-01-libertad_en_la_nube.markdown
@@ -5,7 +5,7 @@ author: "Eben Moglen"
 cover: "images/cover_endefensadelsl_nr0.png"
 old-slug: freedom_in_the_cloud.html
 license: https://creativecommons.org/licenses/by-sa/3.0/us/
-category: [ "En Defensa del Software Libre #0", "En Defensa del Software Libre #X" ]
+category: [ "En Defensa del Software Libre #0", "En Defensa del Software Libre #0-1" ]
 ---
 
 Libertad en la nube, Libertad del Software, Privacidad y Seguridad para la Web 2.0 y Computación en la Nube --- Eben Moglen
diff --git a/2011-02-01-por_que_la_libertad_politica.markdown b/2011-02-01-por_que_la_libertad_politica.markdown
index 4c40b4815ba379feba570ed4c2538e6cb650b9d7..1a50dfed97a82fc80a71b1c6bd46a66cf32a4995 100644
--- a/2011-02-01-por_que_la_libertad_politica.markdown
+++ b/2011-02-01-por_que_la_libertad_politica.markdown
@@ -5,7 +5,7 @@ author: "Eben Moglen"
 cover: "images/cover_endefensadelsl_nr1.png"
 old-slug: why_political_liberty.html
 license: https://creativecommons.org/licenses/by-sa/3.0/us/
-category: [ "En Defensa del Software Libre #1", "En Defensa del Software Libre #X" ]
+category: [ "En Defensa del Software Libre #1", "En Defensa del Software Libre #0-1" ]
 ---
 
 Por qué la libertad política depende de la libertad del software más que nunca --- Eben Moglen
diff --git a/2011-08-01-hackers_gnunios.markdown b/2011-08-01-hackers_gnunios.markdown
index 227b78cfb103c4b41abf0af4af28353a159257f4..615334f9c6a4213131aee92ed5e65c59fce7fd7e 100644
--- a/2011-08-01-hackers_gnunios.markdown
+++ b/2011-08-01-hackers_gnunios.markdown
@@ -5,7 +5,7 @@ title: "¡Hackers GNUníos!"
 cover: "images/cover_endefensadelsl_nr0.png"
 old-slug: hg.html
 license: https://creativecommons.org/licenses/by-sa/3.0/deed.es
-category: [ "En Defensa del Software Libre #0", "En Defensa del Software Libre #X" ]
+category: [ "En Defensa del Software Libre #0", "En Defensa del Software Libre #0-1" ]
 ---
 
 ¡Hackers GNUníos! --- Johan Söderberg
diff --git a/2011-09-01-proyecto_armonia.markdown b/2011-09-01-proyecto_armonia.markdown
index 8d63f1a8c9f19fdc1f1833f2d2d7cdf091fcdca9..54bd1a9bc2132df57d411a58e6048bc08d073165 100644
--- a/2011-09-01-proyecto_armonia.markdown
+++ b/2011-09-01-proyecto_armonia.markdown
@@ -5,7 +5,7 @@ author: "Bradley M. Kuhn"
 cover: "images/cover_endefensadelsl_nr1.png"
 old-slug: harmony_harmful.html
 license: https://creativecommons.org/licenses/by-sa/3.0/us
-category: [ "En Defensa del Software Libre #1", "En Defensa del Software Libre #X" ]
+category: [ "En Defensa del Software Libre #1", "En Defensa del Software Libre #0-1" ]
 ---
 
 Proyecto Harmony considerado dañino --- Bradley Kuhn
diff --git a/2011-11-23-comunismo_de_pares.markdown b/2011-11-23-comunismo_de_pares.markdown
index 4d5079ac6dbd628449cbb843795ee21052607c15..e9f9940cbb9a5412aeae5ad8d73502f445de9bb9 100644
--- a/2011-11-23-comunismo_de_pares.markdown
+++ b/2011-11-23-comunismo_de_pares.markdown
@@ -4,7 +4,7 @@ author: "Dmytri Kleiner"
 title: "El comunismo de pares contra el estado capitalista cliente-servidor"
 cover: "images/cover_endefensadelsl_nr1.png"
 license: http://endefensadelsl.org/ppl_deed_es.html
-category: [ "En Defensa del Software Libre #1", "En Defensa del Software Libre #X" ]
+category: [ "En Defensa del Software Libre #1", "En Defensa del Software Libre #0-1" ]
 ---
 
 El comunismo de pares contra el estado capitalista cliente-servidor --- Dmytri Kleiner