diff --git a/test/test-network/conf/25-wireguard.netdev b/test/test-network/conf/25-wireguard.netdev
index 16f63d00bd..4fed38e57a 100644
--- a/test/test-network/conf/25-wireguard.netdev
+++ b/test/test-network/conf/25-wireguard.netdev
@@ -12,7 +12,7 @@ RouteMetric=456
 
 [WireGuardPeer]
 PublicKey=RDf+LSpeEre7YEIKaxg+wbpsNV7du+ktR99uBEtIiCA=
-AllowedIPs=fd31:bf08:57cb::/48,192.168.26.0/24
+AllowedIPs=fd31:bf08:57cb::/48,192.168.26.3/24
 #Endpoint=wireguard.example.com:51820
 Endpoint=192.168.27.3:51820
 PresharedKey=IIWIV17wutHv7t4cR6pOT91z6NSz/T8Arh0yaywhw3M=