diff --git a/_includes/sections/live-operating-systems.html b/_includes/sections/live-operating-systems.html
index c6aa4792..6ef39090 100644
--- a/_includes/sections/live-operating-systems.html
+++ b/_includes/sections/live-operating-systems.html
@@ -4,13 +4,15 @@
 
   {% include card.html color="success"
   title="Tails"
+  labels="warning:contrib:This software may depend on or recommend non-free software."
   image="/assets/img/tools/Tails.png"
   url="https://tails.boum.org/"
-  description="Tails is a live operating system, that starts on almost any computer from a DVD, USB stick, or SD card. It aims at preserving privacy and anonymity, and helps to: Use the Internet anonymously and circumvent censorship; Internet connections go through the Tor network; leave no trace on the computer; use state-of-the-art cryptographic tools to encrypt files, emails and instant messaging."
+  description='Tails is a live operating system, that starts on almost any computer from a DVD, USB stick, or SD card. It aims at preserving privacy and anonymity, and helps to: Use the Internet anonymously and circumvent censorship; Internet connections go through the Tor network; leave no trace on the computer; use state-of-the-art cryptographic tools to encrypt files, emails and instant messaging.'
   %}
 
   {% include card.html color="primary"
   title="KNOPPIX"
+  labels="warning:contrib:This software may depend on or recommend non-free software."
   image="/assets/img/tools/KNOPPIX.png"
   url="https://www.knopper.net/knoppix/"
   website="knopper.net"
@@ -19,6 +21,7 @@
 
   {% include card.html color="warning"
   title="Puppy Linux"
+  labels="warning:contrib:This software may depend on or recommend non-free software."
   image="/assets/img/tools/Puppy-Linux.png"
   url="http://puppylinux.org/"
   description="Puppy Linux operating system is a lightweight Linux distribution that focuses on ease of use and minimal memory footprint. The entire system can be run from RAM with current versions generally taking up about 210 MB, allowing the boot medium to be removed after the operating system has started."