diff --git a/docker/services/tinc b/docker/services/tinc
index ebf88d2..16641b8 100644
--- a/docker/services/tinc
+++ b/docker/services/tinc
@@ -17,4 +17,10 @@
         ipv4_address: ${internal_address}
 {{ if len "${internal_address6:-}" }}
         ipv6_address: ${internal_address6}
+{{ end }}
+     sysctls:
+{{ if ne "true" "${ipv6_enabled}" }}
+       - net.ipv6.conf.all.disable_ipv6: 1
+{{ else }}
+       - net.ipv6.conf.all.disable_ipv6: 0
 {{ end }}