diff --git a/tests/net/all/prj.conf b/tests/net/all/prj.conf
index 1ab45c3ef6dbd1..90d38919cdad83 100644
--- a/tests/net/all/prj.conf
+++ b/tests/net/all/prj.conf
@@ -221,6 +221,7 @@ CONFIG_NET_ARP=y
 CONFIG_NET_ARP_TABLE_SIZE=3
 CONFIG_NET_ARP_LOG_LEVEL_DBG=y
 CONFIG_NET_ARP_GRATUITOUS=y
+CONFIG_NET_ARP_GRATUITOUS_TRANSMISSION=y
 
 # Logging
 CONFIG_NET_LOG=y