diff --git a/content/cfp.de.md b/content/cfp.de.md
index 67e2046..074da11 100644
--- a/content/cfp.de.md
+++ b/content/cfp.de.md
@@ -7,7 +7,7 @@ menu:
 ---
 
 
-## Chaos Singularity {{< cosin "date_year" >}} - Call For Participation (CfP)
+## Chaos Singularity {{< cosin "date_year" >}} - Call For Participation (CfP) {#chaos-singularity-call-for-participation}
 
 Die Chaos Singularity (kurz CoSin) ist der jährlich stattfindende
 schweizerische Kongress des
diff --git a/content/cfp.en.md b/content/cfp.en.md
index 330d4cf..79ee47f 100644
--- a/content/cfp.en.md
+++ b/content/cfp.en.md
@@ -7,7 +7,7 @@ menu:
 ---
 
 
-## Chaos Singularity {{< cosin "date_year" >}} - Call For Participation (CfP)
+## Chaos Singularity {{< cosin "date_year" >}} - Call For Participation (CfP) {#chaos-singularity-call-for-participation}
 
 Die Chaos Singularity (kurz CoSin) ist der jährlich stattfindende
 schweizerische Kongress des
diff --git a/content/cfp.fr.md b/content/cfp.fr.md
index a9e993d..1e7a165 100644
--- a/content/cfp.fr.md
+++ b/content/cfp.fr.md
@@ -7,7 +7,7 @@ menu:
 ---
 
 
-## Chaos Singularity {{< cosin "date_year" >}} - Call For Participation (CfP)
+## Chaos Singularity {{< cosin "date_year" >}} - Call For Participation (CfP) {#chaos-singularity-call-for-participation}
 
 La Chaos Singularity (en bref CoSin) est le congrès annuelle du [Chaos
 Computer Club Suisse](https://www.ccc-ch.ch/).
diff --git a/content/cfp.it.md b/content/cfp.it.md
index b25c218..b90e811 100644
--- a/content/cfp.it.md
+++ b/content/cfp.it.md
@@ -7,7 +7,7 @@ menu:
 ---
 
 
-## Chaos Singularity {{< cosin "date_year" >}} - Call For Participation (CfP)
+## Chaos Singularity {{< cosin "date_year" >}} - Call For Participation (CfP) {#chaos-singularity-call-for-participation}
 
 La Chaos Singularity (in breve CoSin) è l'evento svizzero annuale del
 [Chaos Computer Clubs Svizzera (CCC-CH)](https://www.ccc-ch.ch/).