diff --git a/README.md b/README.md
index 5b6c991..9aeb0c2 100644
--- a/README.md
+++ b/README.md
@@ -7,3 +7,7 @@
 A simple role to create a CA to create certificates and deploy them to hosts.
 
 The intended use is to create certificates you can use for connecting clients to main systems.
+
+## Variables ##
+
+* `ca_ca_days`: Runtime of the CA certificate (default: `3650`)
diff --git a/defaults/main.yml b/defaults/main.yml
index 9a98c78..9b22165 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -3,6 +3,7 @@
 ca_ca: false
 ca_manage_openssl: true
 ca_ca_dir: /opt/ca
+ca_ca_days: 3650
 ca_ca_password: ChangeMe
 
 ca_country: EX
diff --git a/tasks/ca.yml b/tasks/ca.yml
index 4807764..bc357c1 100644
--- a/tasks/ca.yml
+++ b/tasks/ca.yml
@@ -40,7 +40,7 @@
     -key {{ ca_ca_dir }}/ca.key
     -passin pass:{{ ca_ca_password }}
     -sha256
-    -days 3650
+    -days {{ ca_ca_days }}
     -out {{ ca_ca_dir }}/ca.crt
     -config {{ ca_ca_dir }}/ca.conf
   args: