diff --git a/samples/net/coaps_server/prj_qemu_x86.conf b/samples/net/coaps_server/prj_qemu_x86.conf
index c990f387279..8f48f282199 100644
--- a/samples/net/coaps_server/prj_qemu_x86.conf
+++ b/samples/net/coaps_server/prj_qemu_x86.conf
@@ -14,7 +14,7 @@ CONFIG_NET_PKT_TX_COUNT=14
 CONFIG_NET_BUF_RX_COUNT=30
 CONFIG_NET_BUF_TX_COUNT=30
 CONFIG_NET_IF_UNICAST_IPV6_ADDR_COUNT=3
-CONFIG_NET_IF_MCAST_IPV6_ADDR_COUNT=2
+CONFIG_NET_IF_MCAST_IPV6_ADDR_COUNT=5
 CONFIG_NET_MAX_CONTEXTS=10
 
 CONFIG_ZOAP=y