diff --git a/_includes/sections/mobile-operating-systems.html b/_includes/sections/mobile-operating-systems.html
index 9df7a02d..b1f34a19 100644
--- a/_includes/sections/mobile-operating-systems.html
+++ b/_includes/sections/mobile-operating-systems.html
@@ -8,6 +8,7 @@
 
   {% include card.html color="success"
   title="LineageOS"
+  labels="warning:contrib:This software may depend on or recommend non-free software."
   image="/assets/img/tools/LineageOS.png"
   url="https://www.lineageos.org/"
   description="LineageOS is a free and open-source operating system for smartphones and tablets, based on the official releases of the Android Open Source Project. It is the continuation of the CyanogenMod project."
@@ -15,6 +16,7 @@
 
   {% include card.html color="primary"
   title="Ubuntu Touch"
+  labels="warning:contrib:This software may depend on or recommend non-free software."
   image="/assets/img/tools/Ubuntu-Touch.png"
   url="https://ubuntu-touch.io/"
   description="Ubuntu Touch is a free and open-source operating system for smartphones and tablets. It's an alternative to the current popular mobile operating systems on the market. Only a few devices are <a href=https://devices.ubuntu-touch.io/>supported.</a>"
@@ -22,6 +24,7 @@
 
   {% include card.html color="warning"
   title="GrapheneOS"
+  labels="warning:contrib:This software may depend on or recommend non-free software."
   image="/assets/img/tools/GrapheneOS.png"
   url="https://grapheneos.org/"
   description="GrapheneOS is a free and open-source security and privacy focused mobile operating system built on top of the Android Open Source Project. It currently specifically targets devices offering strong hardware security."