diff --git a/modules/nodes-containers-sysctls-about.adoc b/modules/nodes-containers-sysctls-about.adoc
index 3221165db2..472e3eec84 100644
--- a/modules/nodes-containers-sysctls-about.adoc
+++ b/modules/nodes-containers-sysctls-about.adoc
@@ -73,6 +73,7 @@ in the safe set:
 - *_kernel.shm_rmid_forced_*
 - *_net.ipv4.ip_local_port_range_*
 - *_net.ipv4.tcp_syncookies_*
+- *_net.ipv4.ping_group_range_*
 
 All safe sysctls are enabled by default. You can use a sysctl in a pod by modifying
 the `Pod` spec.